A case study of overfeeding 3 different diets.

Journal Article (Journal Article;Review)

PURPOSE OF REVIEW: Quality or quantity of food has been at the heart of the diet debate for decades and will seemingly continue for many to come unless tightly controlled studies are conducted. To our knowledge, there has never been an overfeeding study comparing the effects of multiple diets. RECENT FINDINGS: This study reports a case study of an individual who ate 5800 Calories per day of 3 different diets for 21 days at a time. The 3 different diets were low-carb, low-fat, and very-low-fat vegan. The weight gain over 21 days was 1.3 kg for low-carb, 7.1 kg for low-fat, and 4.7 kg for very-low-fat vegan. SUMMARY: In this n-of-1 study, consuming 5800 Calories/day of 3 different diets for 21 days did not lead to the same amount of weight gain. Further research should be conducted on how the human body gains weight with an emphasis on how different foods affect physiology. If these findings are replicated, there would be many ramifications for obesity treatment and healthcare guidelines.

Full Text

Duke Authors

Cited Authors

  • Feltham, S; Westman, EC

Published Date

  • October 1, 2021

Published In

Volume / Issue

  • 28 / 5

Start / End Page

  • 446 - 452

PubMed ID

  • 34352821

Electronic International Standard Serial Number (EISSN)

  • 1752-2978

Digital Object Identifier (DOI)

  • 10.1097/MED.0000000000000668


  • eng

Conference Location

  • England