Journal
AMERICAN JOURNAL OF CLINICAL NUTRITION
Volume 113, Issue 5, Pages 1312-1321Publisher
ELSEVIER SCIENCE INC
DOI: 10.1093/ajcn/nqaa396
Keywords
saturated fat; total fat; reformulation; food energy-density; LDL; obesity; overweight
Categories
Funding
- Queen Mary University of London
- National Institute for Health Research (NIHR) Global Health Research Unit Action on Salt China at Queen Mary University of London [16/136/77]
- American Heart Association Postdoctoral Fellowship Award [20POST35120057]
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A modest reduction in fat (especially in saturated fat) in commonly consumed foods can prevent obesity, type 2 diabetes, and cardiovascular disease.
Background: Manufactured and out-of-home foods contribute to excessive calories and have a critical role in fueling the obesity epidemic. We propose a 20% fat reduction in these foods. Objectives: To evaluate the potential impact of the proposed strategy on energy intake, obesity and related health outcomes in the population. Methods: We used the National Diet and Nutrition Survey rolling program (NDNS RP) data to calculate fat and energy contributions from 46 manufactured and out-of-home food categories. We considered a gradual fat reduction-focusing on SFA-in these categories to achieve a 20% reduction in 5 years. We estimated the reduction in energy intake in the NDNS RP population and predicted the body weight reduction using a weight loss model. We scaled up the body weight reduction to the UK adult population. We estimated reductions in overweight/obesity and type 2 diabetes cases. We calculated the reductions of LDL, ischemic heart disease (IHD), and stroke deaths that could be prevented from the SFA reduction. Results: The selected categories contributed to 38.6% of the population's energy intake. By the end of the fifth year, our proposed strategy would reduce the mean energy intake by 67.6 kcal/d/person (95% CI: 66.1-68.8). The energy reduction would reduce the mean body weight by 2.7 kg (95% CI: 2.6-2.8). The obesity prevalence would be reduced by 5.3% and the overweight prevalence by 15%, corresponding to 35 and 1 million cases of obesity and overweight. respectively, being reduced in the United Kingdom. The body weight reduction could prevent 183,000 (95% CI: 171,000-194,000) cases of type 2 diabetes over 2 decades. Energy from SFA would fall by 2.6%, lowering LDL by 0.13 mmol/L and preventing 87,560 IHD deaths (95% CI: 82,260-112,760) and 9520 stroke deaths (95% CI: 4400-14,660) over 20 years. Conclusions: A modest fat reduction (particularly in SFA) in widely consumed foods would prevent obesity, type 2 diabetes, and cardiovascular disease.
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