For postmenopausal women, switching from animal foods to plant foods—whether those plant foods are whole or processed—leads to weight loss and fewer severe hot flashes, meaning what kind of food you eat (animal or plant) matters more than how processed it is.
Evidence from Studies
Supporting (1)
Community contributions welcome
When postmenopausal women switched from eating meat and dairy to plant-based foods—even if those plant foods were processed like vegan burgers—they lost weight and had far fewer hot flashes. It didn’t matter if the plant foods were whole or processed; what mattered was cutting out animal foods.
Contradicting (0)
Community contributions welcome
Score Breakdown
No multi-axis breakdown available yet. The overall Pro / Against score above is the best signal.
- No clinical evidence is available; the score reflects mechanistic plausibility only.
What Would Prove This
Per GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this claim, ordered from strongest to weakest.
Whether replacing animal foods with plant foods—regardless of processing level—is consistently associated with weight loss and reduced hot flashes across diverse populations of postmenopausal women.
A systematic review and meta-analysis of RCTs comparing diets that replace animal foods with plant foods (whole or processed) versus omnivorous diets, measuring weight and hot flash frequency in postmenopausal women over 8–16 weeks, requiring at least 10 trials with 600+ participants and standardized outcome measures.
Whether replacing animal foods with plant foods (whole or ultra-processed) causes greater weight loss and hot flash reduction than reducing animal foods alone without increasing plant foods.
A double-blind RCT of 180 postmenopausal women with ≥2 severe hot flashes daily, randomized to: (1) vegan diet replacing animal foods with whole plant foods, (2) vegan diet replacing animal foods with ultra-processed plant foods, or (3) reduced-animal diet without increased plant foods, measuring weight and hot flash frequency over 12 weeks.
Whether long-term replacement of animal foods with plant foods (regardless of processing) predicts sustained weight loss and reduced hot flash frequency in postmenopausal women.
A prospective cohort study following 2,500 postmenopausal women for 5 years, tracking annual replacement of animal foods with plant foods (quantified by food origin and NOVA category), and measuring weight and hot flash frequency via validated tools, adjusting for soy intake and physical activity.
Whether women who successfully reduced hot flashes and weight on a vegan diet were more likely to have replaced animal foods with plant foods than those who did not.
A case-control study comparing 120 responders (≥80% hot flash reduction and ≥3 kg weight loss) to 120 non-responders after 12 weeks of vegan diet, assessing the proportion of animal-to-plant food replacement via detailed dietary recall, matched for age, BMI, and soy intake.
Whether, at a single point in time, postmenopausal women who replace animal foods with plant foods report lower body weight and fewer hot flashes than those who do not, regardless of plant food processing level.
A national cross-sectional survey of 6,000 postmenopausal women measuring current proportion of animal vs. plant food intake (by NOVA category), body weight, and hot flash frequency using standardized tools, stratified by age, ethnicity, and socioeconomic status.