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Rapamycin extends mouse lifespan 9–14%
NAD+ precursors reverse aging in humans
Blue-light glasses improve sleep quality
Walking 10 min after meals blunts glucose
Verdict change — caffeine half-life downgraded

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How much protein is needed to build and maintain muscle mass? | Layne Norton — Whalespan

Content›Video›How much protein is needed t…

How much protein is needed to build and maintain muscle mass? | Layne Norton

Peter Attia6m · 2024-06-22

Claims Made

14

Claims Supported

8

Support Rate

57%

Support rate

8 of 14 claims supported

8 supported6 partial / not

Claims from this content

12

✓Well SupportedAn intake of 1.6g/kg of body weight for protein is an ideal target for optimizing muscle protein synthesis during training.✓Well SupportedConsuming more than approximately 0.25 grams of protein per pound in a single sitting may lead to protein oxidation rather than utilization for muscle protein synthesis.✓Well SupportedThe RDA for leucine is insufficient for healthy aging, obesity, or chronic illness.✓Well SupportedThe optimal protein intake for individuals engaged in exercise and resistance training research is between 0.8 to 1.2 grams per pound of lean body mass.Not Supported

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A. Volkovreader

4h

Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.

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Would love a "what would change this verdict" RSS feed. Sign me up if it exists.

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Muscle protein synthesis is not stimulated by consuming small, frequent protein meals of 15g throughout the day, even if total daily protein intake is adequate.

◐Partially SupportedAmino acid oxidation likely increases significantly around 2 grams per kilogram of body weight.

◐Partially SupportedConsuming one gram of quality protein per pound of body weight per day is a target for some individuals.

◐Partially SupportedThe system of protein metabolism, where excess protein is oxidized for energy or converted to glucose, expends more energy.

◐Partially SupportedAmino acid oxidation can occur through deamination, entry into the Krebs cycle, or conversion to glucose or ketone bodies.

◐Partially SupportedApproximately 60% of amino acids are glucogenic and can be converted into glucose.

◐Partially SupportedSome amino acids are ketogenic, and at least one branched-chain amino acid is ketogenic.

◐Partially SupportedMetabolic pathways exist for converting protein into glucose and ketone bodies.