Impact of Dietary Counselling on Cardiometabolic Health Outcomes and Dietary Quality in Singapore Older Adults: A Randomized Controlled Trial

Abstract

Abstract Objectives Dietary counselling is an effective nutritional strategy for improving dietary quality and cardiometabolic health, but these beneficial effects have not been well studied in older adults, especially in Asia. Therefore, this study aimed to assess the impact of dietary counselling on cardiometabolic health outcomes and dietary quality in older Singaporean adults. Methods This was a 12-week, parallel design, randomized controlled trial. Twenty-six women aged above 60 y were randomized where the intervention group received dietary counselling (n = 14) and the control group did not receive dietary counselling (n = 12). Anthropometric measurement, blood pressure, fasting lipid-lipoprotein, glucose and insulin levels were examined at baseline and week 12. The interactive dietary counselling sessions were conducted by a qualified nutritionist every week and each session took 60 minutes. The counselling topics included healthy eating pattern, proper food proportioning, food label reading and several age-related diseases. All participants completed a 3-day food record and the dietary quality was assessed using the Alternative Healthy Eating Index 2010 (AHEI-2010). All results were reported as least square means ± SD. Results A significant decrease in serum low density lipoprotein cholesterol level was detected in the intervention group (3.3 mmol/L ± 1.0 to 3.1 mmol/L ± 0.8, P < 0.05) whereas the control group unchanged (3.8 mmol/L ± 0.6 to 3.7 mmol/L ± 0.7). Moreover, although there was an increase in waist circumference in the control group (76 cm ± 7 to 80 cm ± 6, P < 0.05), no change was observed in the intervention group (76 cm ± 7 to 77 cm ± 9). Other anthropometric and cardiometabolic measurements were not changed after intervention. Both groups showed an increase in dietary quality based on the AHEI-2010 score after intervention however change was only significant in the intervention group (44.0 ± 9.1 to 48.9 ± 8.7, P < 0.05). l group, but a significant time effect was observed (P = 0.009). Conclusions The provision of dietary counselling confers the benefits in the cardiometabolic health outcomes and these benefits may be explained by the improvement in dietary quality in Singaporean older adults. Funding Sources National University of Singapore (NUS), NUS-Mind Science Centre.