Consumption Of Vitamin Research Articles

Association between dietary consumption of multiple vitamins and age-related macular degeneration: a cross-sectional observational study in the National Health and Nutrition Examination Survey 2005–2008

PurposeAge-related macular degeneration (AMD) is one of the common causes of blindness in the elderly worldwide. Its prevention and monitoring indicators remain a key area of research. This study aims to examine the association between vitamin intake and AMD prevalence.MethodsData from the National Health and Nutrition Examination Survey (NHANES) from 2005 to 2008 were used for cross-sectional analysis. Logistic regression models, subgroup analyses and multicollinearity regression were employed to assess the association between vitamin intake and AMD.ResultsA total of 1,627 participants were included, with 54.5% (weighted) males and 45.5% (weighted) females. Significant differences were observed in the intake of vitamins B (B1, B2, B6, and B12), E, and folic acid between the AMD and Non-AMD groups. The Non-AMD group had higher average intakes (weighted) of vitamin B1 (1.71 ± 1.10 vs. 1.37 ± 0.64), B2 (2.42 ± 1.22 vs. 1.86 ± 0.70), B6 (2.05 ± 1.25 vs. 1.71 ± 0.85), B12 (5.73 ± 6.18 vs. 4.54 ± 3.27), E (7.93 ± 5.47 vs. 6.39 ± 2.86), and folic acid (181.87 ± 178.04 vs. 140.72 ± 124.60). Logistic regression and subgroup analyses further supported these findings.ConclusionThis study found that higher vitamin intakes B and E were associated with a lower prevalence of AMD in the U.S. population. Eating a healthy diet rich in vitamins B and E, particularly B2 (eggs, green vegetables, meat, mushrooms, and almonds) may help to reduce vision loss due to AMD. However, since this is a cross-sectional study, causal associations between vitamin intake and AMD cannot be established. Further randomized clinical trials are needed to confirm these findings.

Fast-food consumption among Indian adolescents and associated factors

Fast food consumption is on a rise among adolescence in India and this age group is also facing the double burden of malnutrition. Fast foods are an unhealthy food choice and are associated with increasing obesity and related non -communicable diseases at a young age. India has the largest adolescent population and the health and nutrition issues of this group need to be addressed. Ironically children and teenagers who require more healthy nutritious food constitutes the largest population preferring fast foods. There is need to gain a clear insight on the issue in Indian context therefore the current paper was undertaken to study the scale of the problem, along with factors contributing to rising fast-food consumption among adolescent in India. The review primarily focused on existing Indian studies pertaining to the issue. Available studies report high prevalence of fast-food consumption and lower than recommended consumption of fruits, green leafy vegetables and dairy products which is likely to result in higher calorie consumption and lesser intake of protein, vitamins, minerals, dietary fibre and phytochemicals in respondents. Both urban and rural adolescence show rising trends of fast-food consumption. It is higher among the urban counterparts. Studies establishing association between overweight/obesity and junk food/fast food consumption in this age group could be sighted. Studies reported taste, affordability, availability, advertising and marketing, parental influence, nuclear families and working mothers, peer pressure and meal skipping to be the contributory associated factors.

Associations between maternal health literacy and prenatal micronutrient intake in Hungarian women

Abstract Background Adequate level of health literacy (HL) is an important factor in pregnancy. Low HL may increase the risk of maternal and fetal complications (e.g., gestational diabetes mellitus, low birth weight). This study aimed to measure the levels of maternal HL and its associations with the consumption of folic acid (FoA), vitamin D (VD), and omega-3 fatty acids (FAs) during pregnancy in Hungarian women. Methods The questionnaire-based study was conducted at the Department of Obstetrics and Gynecology, University of Szeged among women who gave birth between June and September 2023 (N = 294). Sociodemographic, lifestyle, conception and pregnancy related questions were asked. HL was measured by the Maternal Health Literacy Inventory in Pregnancy (MHELIP) questionnaire (after the Hungarian adaptation); it contains 48 items representing four subscales (maternal health knowledge, search for maternal health information, assessment of maternal health information, and maternal health decision making and behavior). Data analysis was performed by SPSS 29.0. (Ethical permission: 5351) Results The mean age of women was 31.53 +-4.75 years. During pregnancy 84.5% of women consumed FoA, 61.8% VD and 41.8% omega-3 FAs. The total mean score of MHELIP on a scale 0-100 was 78.93 (95%CI: 77.77-80.08); the score of “search for maternal health information” subscale was the lowest [57.68 (95%CI: 56.20-59.16)], and the score of “maternal health decision making and behavior” was the highest [86.75 (95%CI: 85.62-87.87)]. Omega-3 FAs and VD consumption was significantly higher in women with higher total and subscales mean scores (except “search for maternal health information”), while FoA consumption was significant in case of “assessment of maternal health information”. (The results are preliminary.) Conclusions The association between micronutrient consumption and HL supports that using this tool during pregnancy the mothers who needs more support and health information can be identified. Key messages • The Maternal Health Literacy Inventory in Pregnancy questionnaire is a reliable tool for measuring health literacy in Hungarian pregnant women. • Maternal health literacy plays an important role in the healthier lifestyle, including prenatal vitamin/micronutrient consumption.

12583 Nutrient Intake And Physical Performance In Patients With Acromegaly

Abstract Disclosure: N.N. Hupalowski: None. C.P. Rocha: None. S.Z. Fidalski: None. C.L. Boguszewski: Consulting Fee; Self; Recordati. Research Investigator; Self; Crinetics. Speaker; Self; Ipsen, Novo Nordisk. V.Z. Borba: None. Acromegaly is a chronic disease characterized by increased levels of growth hormone (GH) and insulin-like growth factor 1 (IGF-1). These patients exhibit increased skeletal muscle mass but poorer performance in functional physical assessments. Certain nutrients are important for both muscle mass and strength, as well as for maintaining an anti-inflammatory state in the body. Objective: To assess the correlation between nutrient intake and physical performance in patients with acromegaly. Patients and Methods: An observational, cross-sectional study of patients with acromegaly matched 1:1 by sex and age with a control group. Patients underwent analysis of dietary patterns using the validated Food Frequency Questionnaire (FFQ), and physical performance and strength were measured using Hand Grip Strength (HGS), 5 Times Seat to Stand Test (STST), Time Up and Go (TUG), and Short Physical Performance Battery (SPPB) tests. Results: It was evaluated 47 patients (54.1% women; mean age 56.3 ± 11.6 years), which were compared with 36 controls (53.9% women; mean age 56.7 ± 13.4). There was no difference between groups in HGS evaluation. The performance of patients with acromegaly were poorer in the STST, SPPB and TUG. Better performance was associated with selenium (p=0.045), vitamin E (p=0.034), flavonol (p=0.02) and vitamin A (0.024) intake. Conclusion: Physical performance is compromised in patients with acromegaly, especially in lower limbs, and it was associated with lower consumption of selenium, vitamin E, flavonol and vitamin A. Presentation: 6/2/2024

Overview of Dietary Supplements Use: A Narrative Review

Abstract: Dietary supplements are ingestible nutrient products used in individuals’ diets to meet their adequate intake of nutrients required for general health purposes. This review aims to explore the impact of using dietary supplements in relation to communicable and non-communicable diseases, as well as some adverse effects caused by dietary supplements. Findings indicated that vitamin D supplements can aid in recovery from flu and COVID-19. Folic acid can reduce stroke incidents among adults with hypertension. Moreover, vitamin C or calcium intake is significantly associated with lowering diabetes risk. Advantageous effects have been reported of high doses of vitamin C against breast cancer. Moreover, frequent consumption of vitamin E reduced the risk of chronic lung diseases by 10%. In conclusion, the present review confirms the beneficial health effects of dietary supplement consumption and suggests further investigations for a better understanding of their mechanisms in the prevention and treatment of communicable and non-communicable diseases.

Prenatal Vitamin D Deficiency and Maternal and Fetal Health Outcomes.

Vitamin D deficiency (VDD) is a significant health issue that could have serious implications for the well-being of women and their offspring. Prenatal vitamins are widely used, but deficiency still occurs frequently in the preconception period, during pregnancy, and in breastfed infants. We analyzed the association between prenatal VDD and maternal and fetal health outcomes by reviewing studies conducted in Europe. The literature was searched for articles published in the last 10 years focusing on preeclampsia, gestational diabetes mellitus, preterm birth, low birth weight, asthma, and autism spectrum disorder. We identified a total of 43 review articles, 31 original articles, and two guidelines. During pregnancy, VDD is associated with a higher likelihood of developing gestational diabetes mellitus and preeclampsia. It may also lead to an increase in the risk of preterm birth, low birth weight, as well as asthma, and autism spectrum disorder in the offspring. While the official guidelines for vitamin D dosage differ in various countries, health authorities usually recommend a total daily supplement intake of 400-2,000 IU. In conclusion, this review emphasizes the importance of establishing guidelines for vitamin D supplementation as well as the requirement of official standards for the consumption of vitamin D in the prenatal period. Future research should concentrate on developing more unified approaches to vitamin D assessment and establishing preventative measures that can be incorporated into prenatal care programs.

The association between dietary antioxidant quality score and intensity and frequency of migraine headaches among women: a cross-sectional study

BackgroundMigraine is an episodic disorder and a frequent form of headache. An impaired balance between free radical production and an impaired antioxidant defense system leading to oxidative damage may play a major role in migraine etiology. We sought to investigate whether dietary antioxidant quality score (DAQS) is associated with migraine intensity and frequency among women suffering from migraine.MethodsThis cross-sectional study was conducted on 265 women. The data related to anthropometric measures and dietary intake were collected. DAQS score was calculated based on FFQ (food frequency questionnaire) vs. the reference daily intake (RDI) quantity. To measure migraine intensity, the migraine disability assessment questionnaire (MIDAS) and visual analog scale (VAS) were used. The frequency of headaches was defined as the days the participants had headaches in the last month and a 30-day headache diary was used.ResultsThe results of the study demonstrated that VAS, MIDAS, and frequency of headaches were reduced significantly from the low DAQS (poor quality of antioxidants) to high DAQS (high quality of antioxidants) after adjusting covariates. Also, multinomial regression showed there was an inverse association between higher DAQS and the frequency of headaches. In the adjusted model, subjects with the higher DAQS were 69% less likely to have moderate migraine disability, compared with those with the lower DAQS. Linear regression showed, there was an inverse association between vitamin C intake and the grades of pain severity.َAlso in a crude model, a negative association was found between vitamin E and the frequency of headaches.ConclusionIn conclusion, Participants with higher DAQS had lower migraine intensity and headache frequency. In addition, the consumption of vitamin C may potentially associate with decreasing the severity of headaches. Dietary antioxidants should be monitored closely in individuals suffering from migraine.

Consumer Perception and Willingness to Pay for Vitamin A Fortified Garri in Ibadan North Local Government Area of Oyo State, Nigeria

Vitamin A deficiency is one of the major micronutrient deficiencies contributing to child mortality globally. This study assessed consumers’ perception and willingness to pay (WTP) for vitamin A fortified garri in Ibadan North Local Government Area, Ibadan, Oyo State, Nigeria. A total of 170 respondents were interviewed. Socioeconomic characteristics of respondents, perception of and factors that influence their willingness to pay for fortified vitamin A garri and the mean willingness to pay (MWTP) were all analysed. The study revealed that most of the respondents were aware of vitamin A fortified garri but they hardly purchased it. The computed MWTP for vitamin A fortified garri was ₦190 ($0.35) indicating a positive mean willingness to pay. The result of the logistic regression analysis showed that out of the twelve variables examined, four were statistically significant at various levels. Specifically, sex, ethnicity and marital status were all negatively significant at 10%, 5% and 10% respectively while health status was positively significant at 1%. It was concluded that a higher proportion of the respondents perceived vitamin A fortified garri to be healthier and more nutritious and were also willing to pay it. The paper recommended that efforts should be geared towards encouraging production and consumption of vitamin A fortified garri by creating more markets for the product.

Knowledge, Attitudes and Practice About Vitamin Supplements Counseling in Libyan Community Pharmacies

Pharmacists play an important role in the healthcare system and have a greater impact on the outcome of public health programs. Patients who seek vitamin advice presume the role of community pharmacists including the recommendation of effective vitamin supplements. This study aimed to evaluate knowledge, attitudes and professional practices of Libyan community pharmacists in counselling patients about the safe consumption of vitamins. A cross-sectional study was conducted in pharmacies located in Tripoli, Libya between October 2023 and February 2024. Data collection was carried out using semi-structured self-administrated questionnaire. A total of 235 pharmacists participated in this study. The majority (75.3%) of pharmacists believed that a balanced diet is more achievable by eating healthily than by vitamins supplements. 76.6% of participants believed that chronic consumption of certain vitamins would not shorten life spans, while 65.5% agreed that vitamin supplements could be toxic or might contain unlabeled harmful ingredients. Less than half of pharmacists (35.3) were aware that some antioxidant vitamins have been verified to be of unproven value, or may even cause cancer. 80% of pharmacists would recommend vitamins on a regular basis without prescription, the majority agreed that counselling on vitamin supplements is part of their role in pharmaceutical care (94.5%), in addition to providing relevant information to other healthcare professionals (76.6%). Moreover, responses to specific knowledge questions, such as the interactions of vitamins with drugs or the recommended dietary allowance of vitamins for infants, children, and pregnant women, were negative. Furthermore, only a minority of pharmacists (48.5%) would recheck the accuracy of dose regimens in prescriptions and 50.6% of participants would follow up patients to record any consequences of vitamins consumption. The questionnaire revealed satisfactory awareness of community pharmacists about their role in counselling; however, further programmes to update their knowledge are mandatory to emphasise the importance of vitamin supplements as part of complementary medicine, and their exclusion from being considered as merely over the counter (OTC) products.

Highly Sensitive Biosensors Based on All-PEDOT:PSS Organic Electrochemical Transistors with Laser-Induced Micropatterning.

Recent advances in numerous biological applications have increased the accuracy of monitoring the level of biologically significant analytes in the human body to manage personal nutrition and physiological conditions. However, despite promising reports about costly wearable devices with high sensing performance, there has been a growing demand for inexpensive sensors that can quickly detect biological molecules. Herein, we present highly sensitive biosensors based on organic electrochemical transistors (OECTs), which are types of organic semiconductor-based sensors that operate consistently at low operating voltages in aqueous solutions. Instead of the gold or platinum electrode used in current electrochemical devices, poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) was used as both the channel and gate electrodes in the OECT. Additionally, to overcome the patterning resolution limitations of conventional solution processing, we confirmed that the irradiation of a high-power IR laser (λ = 1064 nm) onto the coated PEDOT:PSS film was able to produce spatially resolvable micropatterns in a digital-printing manner. The proposed patterning technique exhibits high suitability for the fabrication of all-PEDOT:PSS OECT devices. The device geometry was optimized by fine-tuning the gate area and the channel-to-gate distance. Consequently, the sensor for detecting ascorbic acid (vitamin C) concentrations in an electrolyte exhibited the best sensitivity of 125 μA dec-1 with a limit of detection of 1.3 μM, which is nearly 2 orders of magnitude higher than previous findings. Subsequently, an all-plastic flexible epidermal biosensor was established by transferring the patterned all-PEDOT:PSS OECT from a glass substrate to a PET substrate, taking full advantage of the flexibility of PEDOT:PSS. The prepared all-plastic sensor device is highly cost-effective and suitable for single-use applications because of its acceptable sensing performance and reliable signal for detecting vitamin C. Additionally, the epidermal sensor successfully obtained the temporal profile of vitamin C in the sweat of a human volunteer after the consumption of vitamin C drinks. We believe that the highly sensitive all-PEDOT:PSS OECT device fabricated using the accurate patterning process exhibits versatile potential as a low-cost and single-use biosensor for emerging bioelectronic applications.

Analysis of the Urgency of Vitamin A Consumption on the Growth and Development of Toddlers

Vitamin A is an essential vitamin that plays an important role in the growth and development of toddlers. Vitamin A is the most important nutrient for restoring health and survival. Vitamin A deficiency increases morbidity and mortality, because it is susceptible to infections such as diarrhea and pneumonia. The method used is a literature review method with journals ranging from 2019 to 2024 with appropriate journals. This literature review aims to analyze the urgency of consuming vitamin A for optimal growth and development of toddlers. The results obtained show that consumption of vitamin A is very important for the growth and development of toddlers. Vitamin A plays an important role in maintaining eye health, the immune system, and cognitive function. The conclusion that can be drawn is that vitamin A consumption is very important for optimal growth and development of toddlers.

The association between the history of supplement use (vitamin or mineral) and COVID-19 disease in the persian cohort population

The aim of the study was to examine the association between vitamin and mineral supplement consumption and the possibility of contracting COVID-19 disease in the Persian cohort population in 2020. This retrospective cohort study was conducted on 4241 people who were registered in the Cohort Registration System. A logistic regression was performed to ascertain the multivariate association between demographic, health variables, and supplement use and the likelihood that participants were infected with COVID-19. The software used was IBM SPSS 24.0, and a significance level of 0.05 was considered. Analyze the quantitative variables, if the variable was normal, the independent t-test was used, and if the variable was not normal, the Mann–Whitney test was used. To compare the distribution of qualitative variables in the groups, a chi-square test or, if necessary, a Fisher’s exact test was used. The number of participants in this cohort study was 4241. The average age of the participants in the study was 49.22±8.77. The OR value of age variable 0.989 (95% CI: 0.927–1.056); sex variable (95% CI: 0.238–2.743, OR = 0.808); BMI variable (95% CI: 0.927–1.056, OR = 0.953); vitamin D variable (95% CI: 0.333–6.769, OR = 1.502); omega3 variable (95% CI: 0.410–7.688, OR = 1.776); calcium variable (95% CI: 0.041–3.738, OR = 0.391); calcium variable (95% CI: 0.041–3.738, OR = 391); multiVIT variable (95% CI: 0.211–5.645, OR = 1.090); VitC variable (95% CI: 0.000–0.000, OR = 0.000); vitE variable (95% CI: 0.000–0.000, OR = 0.000); were the interval includes. There were no statistically significant multivariate associations (P 0.05) between the explanatory variables infected with COVID-19. There was only a statistically significant correlation between the use of iron tablets and contracting COVID-19 (P = 0.025). Controlling the variables or identifying causal correlations is not feasible due to the observational nature of the study. The results cannot be safely extrapolated to other regions of the world because the cohort sample was limited to inhabitants of Iran.

Relationship between Consumption of Vitamin D Food Sources, Sun Exposure, and Consumption of Vitamin D Supplements with Intrauterine Growth Restriction at Airlangga University Hospital Surabaya

Relationship between Consumption of Vitamin D Food Sources, Sun Exposure, and Consumption of Vitamin D Supplements with Intrauterine Growth Restriction at Airlangga University Hospital Surabaya

Association of dietary vitamin C consumption with severe headache or migraine among adults: a cross-sectional study of NHANES 1999-2004.

An antioxidant-rich diet has been shown to protect against migraines in previous research. However, little has been discovered regarding the association between migraines and vitamin C (an essential dietary antioxidant). This study assessed the dietary vitamin C intake among adult migraineurs in the United States to determine if there is a correlation between migraine incidence and vitamin C consumption in adults. This cross-sectional research encompassed adults who participated in the National Health and Nutrition Examination Survey (NHANES) from 1999 to 2004, providing detailed information on their dietary vitamin C intake as well as their history of severe headaches or migraines. The study used weighted multivariable and logistic regression analyses to find an independent connection between vitamin C consumption and severe headache or migraine. Tests of interactions and subgroup analysis were conducted. Among the 13,445 individuals in the sample, 20.42% had a severe headache or migraine. In fully adjusted models, dietary vitamin C consumption was substantially linked negatively with severe headache or migraine (odds ratio [OR] = 0.94, 95% confidence interval [CI] = 0.91-0.98, p = 0.0007). Compared to quartile 1, quartile 4 had 22% fewer odds of having a severe headache or migraine (OR = 0.78, 95% CI = 0.69-0.89, p = 0.0002). Subgroup analyses showed a significant difference between vitamin C intake and severe headaches or migraines by gender (p for interaction < 0.01). Reduced risk of severe headaches or migraines may be associated with increased consumption of vitamin C.

Vitamin consumption and the ontogenesis of cathepsins and antioxidant capacity in developing embryos of turbot, Scophthalmus maximus

Vitamin consumption and the ontogenesis of cathepsins and antioxidant capacity in developing embryos of turbot, Scophthalmus maximus

Association Between Vitamin D Deficiency and Tumor Characteristics in Breast Cancer Patients.

Introduction Breast cancer is the most frequent cancer among women worldwide, but there is little literature regarding the effects of vitamin Donbreast cancer patients in the Indian population. Hence, this study was planned to determine the correlation between vitamin D deficiency and tumor characteristics in breast cancer patients. Methods This was a cross-sectional study conducted in a tertiary healthcare facilityin central India among allnewly diagnosed patients with breast carcinoma who had received primary surgery and pathological confirmation. We performed universal sampling and included 50 patients in the study. We excluded patients with insufficient histopathological reports, those unfit for surgery, and those with hepatic or renal failure, metabolic bone disease, malabsorption, orrecent consumption of vitamin D (patients who had received oral vitamin D in the preceding two weeks, or vitamin D injection in the preceding six months). Results Among the 50 patients, 86% were vitamin D deficient, with a mean deficiency of 23.54. Vitamin D deficiency is most common in the age groups 41-50 years and >60 years, with the mean age group of 51.49 years. The left side is more involved than the right in vitamin D-deficient patients. Most patients were moderately and poorly differentiated, suggesting a significant association between vitamin D deficiency and tumor differentiation. Almost half the patients were estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (Her-2/neu) status negative with vitamin D deficiency. Vitamin D deficiency was highest in Her-2/neu amplified, luminal A, and B patients. The mean lymph node-positive participants was 4.04, and the mean number of lymph nodes extracted was 15.58 in vitamin D-deficient breast cancer patients. Conclusion The prevalence of low vitamin D status was high among breast cancer patients. There is an association between vitamin D deficiency and tumors with poor prognostic features. Low vitamin D levels were considered a risk factor for ER, PR, and Her-2/neu-negative tumors along with positive lymph node status in breast cancer patients. Vitamin D status is a modifiable risk factor for breast cancer.Thus, it is concluded from this study that vitamin D has a potential role in the prevention of breast cancer, it may reduce its aggressiveness, and its deficiency is associated with an increased risk of breast cancer.

Machine Learning Identification of Nutrient Intake Variations across Age Groups in Metabolic Syndrome and Healthy Populations.

This study undertakes a comprehensive examination of the intricate link between diet nutrition, age, and metabolic syndrome (MetS), utilizing advanced artificial intelligence methodologies. Data from the National Health and Nutrition Examination Survey (NHANES) spanning from 1999 to 2018 were meticulously analyzed using machine learning (ML) techniques, specifically extreme gradient boosting (XGBoost) and the proportional hazards model (COX). Using these analytic methods, we elucidated a significant correlation between age and MetS incidence and revealed the impact of age-specific dietary patterns on MetS. The study delineated how the consumption of certain dietary components, namely retinol, beta-cryptoxanthin, vitamin C, theobromine, caffeine, lycopene, and alcohol, variably affects MetS across different age demographics. Furthermore, it was revealed that identical nutritional intakes pose diverse pathogenic risks for MetS across varying age brackets, with substances such as cholesterol, caffeine, and theobromine exhibiting differential risks contingent on age. Importantly, this investigation succeeded in developing a predictive model of high accuracy, distinguishing individuals with MetS from healthy controls, thereby highlighting the potential for precision in dietary interventions and MetS management strategies tailored to specific age groups. These findings underscore the importance of age-specific nutritional guidance and lay the foundation for future research in this area.

Low dietary vitamin C intake is associated with low muscle strength among elderly Korean women

Although vitamin C is one of the most important antioxidants, its effect on muscle quality is not fully understood. Therefore, we hypothesized that low dietary vitamin C intake is associated with low muscle strength. To test the hypothesis, a single 24-h dietary recall and handgrip strength test of 10,883 younger adults 19-64 y and 3,961 older adults ≥65 y from the seventh Korea National Health and Examination Survey (KNHANES VII 2016-2018) was analyzed by multivariable linear and logistic regression models, and low muscle strength was defined as handgrip strength <28 kg for men and <18 kg for women. Approximately 15.5% of Korean adults met the recommended intake of dietary vitamin C, and those with higher dietary vitamin C intake had higher total energy and protein intake. After adjusting for confounding variables, including age, body mass index, total energy intake, household income, alcohol consumption, smoking, resistance exercise, medical condition, and dietary intake of protein, vitamin E, and β-carotene, dietary vitamin C was correlated with maximal handgrip strength in younger women 19-64 y (β = 0.002; SE = 0.001; P-value = .026) and older women ≥65 y (β = 0.005; SE = 0.002; P-value = .013). Among older women ≥65 y, those in the lowest quartile of dietary vitamin C intake had a higher risk of low muscle strength compared to those in the highest quartile after adjustment of confounding factors (odds ratio, 2.16; 95% confidence interval, 1.49-3.15). These results imply that adequate dietary vitamin C intake may reduce the risk of sarcopenia in older Korean women.

Association of dietary vitamin C intake with depression in adults: A cross-sectional study of NHANES from 2005 to 2020

BackgroundThe aim of this study was to evaluate the association between dietary vitamin C intake and depression in adults. MethodsThis cross-sectional study utilized data from the National Health and Nutrition Examination Survey (NHANES) during 2005 to 2020. Logistic regressions and restricted cubic spline (RCS) regression were used to assess the association between dietary vitamin C intake and depression. Additionally, we performed stratified and sensitivity analyses to evaluate the stability of the results. ResultsThis study included 38,157 participants, with 3448 (9.04 %) of them experiencing depression. The vitamin C intake was negatively associated with depression after adjusting for all covariates (OR = 0.91, 95%CI: 0.88–0.94, P < 0.001). Similar inverse associations were observed when vitamin C intake was transformed into categorical variables. Individuals in higher quartiles of dietary vitamin C intake (Q2, Q3, and Q4) had lower odds ratios (ORs) compared to those in the lowest quartile (Q1), as indicated by adjusted ORs of 0.78 (95 % CI: 0.71–0.87, P < 0.001), 0.74 (95 % CI: 0.67–0.82, P < 0.001), and 0.73 (95 % CI: 0.65–0.81, P < 0.001), respectively. The RCS analysis found an L-shaped nonlinear relationship between dietary vitamin C intake and depression, after adjusting for all covariates (P for non-linearity<0.001). Consumption of vitamin C was inversely associated with depression (OR = 0.994, 95%CI: 0.993–0.996, P < 0.001) for intakes below 93.61 mg, but there was no association between dietary vitamin C intake and depression (P = 0.980) for intakes of 93.61 mg or higher. The inverse associations between vitamin C intake and depression remained robust in stratified and sensitivity analyses. LimitationsThis study was a cross-sectional study, and therefore unable to establish a causal relationship between dietary vitamin C intake and depression. We are unable to fully eliminate the confounding effects resulted from other unmeasured or unknown factors. ConclusionThe study revealed a negative association between dietary vitamin C intake and depression, as well as an L-shaped nonlinear relationship between vitamin C intake and depression.

Investigating the role of Vitamins in Prostate cancer risk among African Americans

Background &amp; Aims: Previous studies have shown certain vitamins and minerals are associated with a reduced risk of prostate cancer. In this study, we assess whether vitamins will have an effect on prostate cancer risk among African Americans. Methods: A case-control study was conducted in Washington, District of Columbia and Nashville, Tennessee. There were 264 participants involved in the study. The participants were divided into 3 groups: prostate cancer (n=56), elevated PSA (n=377) and control (n=163). Dietary intake was measured by using a validated food frequency questionnaire. Food items rich in vitamin D, vitamin E, selenium, and lycopene were identified. Chi square tests were performed to evaluate the association between vitamins and prostate cancer risk. Results: There is a statistically significant association between the consumption of certain food items such as beef, pork, eggs and decreased prostate cancer risk (p&lt;.05). There is also a statistically significant association between the consumption of salmon, cod liver oil, peanuts, mushrooms, orange juice and prostate cancer risk increase (p&lt;.05). When aggregated, there was no significant correlation between the consumption of vitamin D, vitamin E, lycopene, selenium and decreased prostate cancer risk. Conclusions: Results of our case-control study suggest dietary restriction of certain meats as prostate cancer risk reduction strategy cannot be suggested. Increasing annual intake of food high in vitamin D, vitamin E, selenium, and lycopene cannot be suggested as a way to decrease prostate cancer risk. Diet modification interventions should focus on dietary moderations. Center of Excellence COE/Offce of Dean, Meharry Medical College School of Medicine, Grant Number: D34HP16299. This is the full abstract presented at the American Physiology Summit 2024 meeting and is only available in HTML format. There are no additional versions or additional content available for this abstract. Physiology was not involved in the peer review process.