practice · Tracked item
Long-term water-only fasting
Every recorded take from the experts Cited tracks — each with the exact quote, source, and timestamp.
▼ Broad caution
3 recommendations across 2 experts · 3 episodes
0 endorse
0 nuanced
3 avoid
Who's on the record
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Attia cautions against extreme fasting (7–10 day water fasts, quarterly), citing significant muscle loss as a major cost despite some benefits.
“I think what I was sort of confronting was, wow, there's actually a pretty big cost as well
TT▶ 9:30DosageHe had been doing up to 10-day water fasts quarterly and 3-day fasts monthlyCaveatsAcknowledges some benefits but believes net effect on muscle is lossCertaintypersonal onlymild caution -
Organic (prompted)
Attia stopped his prior multi-day fasting regimen (7-10 days quarterly, 3 days monthly) after losing ~16-20 lbs of muscle over 3 years; classifies as 'fuzzy'.
“I'm gonna just put the kibosh on fasting for now
TP▶ 1:01:40CaveatsSubstantial muscle loss; thyroid and androgen function deteriorate during fastsCertaintyhedgedmild caution -
In a protocol
Avoid prolonged water fasts — they release heavy metals and organopesticides stored in fat that the body can't efficiently detoxify.
“water fasting is dangerous
TD▶ 34:30CaveatsIf you do it anyway, use chlorella tablets and activated charcoal to bind toxinsCertaintyexplicitstrong warning