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NEW STUDY: It's dogma that fasting is good for you because it increases autophagy, the recycling of cell parts. But in the largest study …
what it claims
This claim is based on a recent study published in Nature Communications (2024), which followed participants for six months.
noli's read
This claim is based on a recent study published in Nature Communications (2024), which followed participants for six months. The study shows an actual absence of any significant increase in autophagy markers measured in the blood, calling into question the idea that fasting acts primarily via this mechanism in humans over the long term. It is important to note that autophagy is a complex process that is difficult to measure accurately in vivo in humans, and that these results contrast with many observational studies or those conducted on animal models. The researcher does not say that fasting is useless, but emphasizes that the biological mechanism often highlighted is not supported by these new, robust data. What stands here is the questioning of the specific mechanism of action. What is potentially exaggerated is concluding that the practice is totally ineffective, as other metabolic benefits (insulin, weight) remain documented in the scientific literature.
the sources
Claimed by David Sinclair. Noli grades the claim, never the person.
Decoded by Noli · July 18, 2026 · the original post
What’s uncertain
Fasting has no special fat-loss power beyond the calorie deficit it helps create. If it makes you overeat later or feel miserable, a simpler steady approach works just as well.
Other advice in the Register that leans on the same research.
Paste any health post from TikTok, Instagram, YouTube or X — or the advice itself, if someone just told you. About ten seconds, no account needed.
