Macronutrients Association with Change in Waist and Hip Circumference Over 9 Years

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Objective: The calorie distribution of macronutrients affects individuals' health. Quantity and source of macronutrients may play major roles in waist circumference (WC) and hip circumference (HC). This study's purpose is to investigate the association between the quantity and source of macronutrients and the change in WC and HC over 9 years.Methods: Participants (N = 11,343) were from the Atherosclerosis Risk in Community Study. Those diagnosed with cancer or a decrease in WC or HC of 15 cm or more over 9 years were excluded. Change scores were created for anthropometrics between clinic visits over 9 years. Macronutrient intakes were assessed by a food frequency questionnaire at visit 1 and presented as a percentage of energy intake. Linear regressions were performed with quartiles of dietary components on change scores for WC and HC with controlling cofactors. Gender subgroup analysis was performed.Results: A larger increase in WC was associated with higher intakes of total carbohydrates, dietary fiber, and fructose (p for trend < 0.005). A smaller increase in WC was associated with higher intakes of sucrose, total protein, animal protein, and alcohol (p for trend < 0.02). A larger increase in HC was associated with higher intakes of total carbohydrate, sucrose, fructose, animal protein, and vegetable fat (p for trend < 0.05). A smaller increase in HC was associated with higher intakes of animal fat, total fat, and total protein (p for trend < 0.05). In males, changes in WC and HC were associated with fructose, sucrose, total fat, and total protein. In females, changes in WC and HC were associated with dietary fiber, fructose, alcohol, animal protein, total protein, animal fat, and vegetable fat.Conclusion: Macronutrient source and quantity play a significant role in individuals' adiposity and effects on WC and HC. Overall, an increase in WC and HC was seen over the 11 years. The source and quantity of the macronutrients play a significant role in WC and HC. Further research needs to be conducted to see the exact effect that macronutrients play on WC and HC.