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. Author manuscript; available in PMC: 2022 Mar 7.
Published in final edited form as: Annu Rev Nutr. 2021 Aug 6;41:253–282. doi: 10.1146/annurev-nutr-120420-032437

Table 1.

Comparison of human and rodent obesity-promoting and dietary energy–restriction diets

Diet category Diet name Description of human diet Description of rodent diet References (cancer related if available)
Obesity promoting High-fat diet Western-style diet: calorically dense refined foods and beverages that are high in fat and salt but low in fiber 45–60% caloric content from lard 19, 52, 67, 121
Dietary energy restriction Calorie restriction 10–25% daily calorie restriction without malnutrition; routine meal schedule is maintained 30–40% daily calorie restriction without malnutrition; single meal presented daily 13, 95
5:2 intermittent energy restriction 5 days per week: Mediterranean-style diet; 2 nonconsecutive days per week: 75% reduction in caloric intake with low-carbohydrate foods 5 days per week: 14% daily calorie restriction; 2 nonconsecutive days per week: 70% daily calorie restriction ND
Time-restricted feeding Consistent ≤10 h daily timeframe when food can be consumed ad libitum Consistent 8–12 h daily timeframe when food can be consumed ad libitum 24, 81, 170
Fasting-mimicking diet Minimal caloric intake (300–1,000 calories per day) while consuming foods low in carbohydrates and proteins and high in unsaturated fats; 5 consecutive days, twice per month coinciding with cancer treatment 50–90% calorie restriction for 4 consecutive days 2 times per month in combination with cancer therapy administration; food consists of broth powders, glycerol, and essential fatty acids 22, 43
Ketogenic diet High-fat, low-carbohydrate diet (≥85% kcal fat); no calorie restriction required Ad libitum access to a diet that is generally >85% calories from fat and <5% calories from carbohydrate with the remaining calories from protein, with slight variation between studies 88, 90

Abbreviation: ND, no data.