Metabolism drops during weight loss because a smaller body requires fewer calories to maintain, not because low-calorie diets cause an unnatural metabolic slowdown; BMR decreases only 5-75 calories per day during dieting and reverts only when weight is regained, with the additional drop being minimal (75-100 kcals/day) even in extreme starvation cases.
Deep Dive
Prerequisite Knowledge
- No data available.
Where to go next
- No data available.
Deep Dive
WHY METABOLISM DROPS
Added:The longer you stay at lower calories, the lower your metabolism is. This means your BMR will literally get lower.
>> Correct. Smaller people have lower basal metabolic rates.
>> The opposite is true when we lift weights, when we eat enough, meaning at least in calorie maintenance.
>> If you're maintaining, BMR can't change dramatically, but continue.
>> Not eating a lot is literally keeping you further from your goal.
>> Okay, I think that she has good intent here, but this is a common area of confusion. She's suggesting that low-calorie diets cause an unnatural drop in your metabolic rate.
>> Negative, Ghost Rider. The pattern is [music] full.
>> During weight loss, RMR decreases only about 5 to 75 calories per day compared to predictive equations. When dieting on only 800 calories per day, predictive equations seem to match resting metabolic rate by about year one or two post weight loss. Even when looking at starvation experiments, athletes aggressively cutting weight, anorexic women, and malnourished people, metabolisms were accurately predicted by body composition and calorie intake. BMR only reverts back to what it originally was if you regain the lost weight. If you stay lean, expect lower maintenance calories. Low calories aren't causing the BMR to drop. A smaller you is. Body fat, lean muscle, and organ size all burn calories for energy. As you become a smaller person, there's less of you, which means your BMR adjusts accordingly. It's not more complicated than that.
Related Videos
I Found 7 Golden Orb Spider In The River !! Spiny Spider, Weaver orb Spider
insect_geography
1K views•2026-06-16
Your nose is more than a breathing tube...
HealthInSeconds_1
2K views•2026-06-16
Why do marmots always look so dramatic
CodeFauna
3K views•2026-06-16
Your Axolotl Is a Salamander That Never Grew Up
dailywildreports
661 views•2026-06-17
King Vulture: The Colorful King of the Rainforest Skies!
NatureChirps-05
185 views•2026-06-18
The Biggest Lies In The Animal Kingdom!
InfiniteFactssofficial
1144K views•2026-06-15
Humpback Whale, Whale Shark, Great White Shark and Mako Shark Giant Ocean Adventure for Kids
EvieWildTales
5K views•2026-06-18
Thunder Mountain in Juneau, Alaska
Raven-Orix
1K views•2026-06-14











