Your body can absorb more than 30 grams of protein at once

Protein absorption has no strict cutoff, but muscle-building returns eventually diminish.

The claim that your body can absorb only 20–30 grams of protein per meal confuses absorption with muscle protein synthesis. Most dietary protein is absorbed; larger servings do not simply pass through unused. Their amino acids can support enzymes, hormones and other tissues, or be oxidized for energy.

Muscle protein synthesis does appear to reach a temporary ceiling after a sufficiently large dose. The amount depends on body size, age, protein quality and whether you trained. Research commonly places an effective serving near 0.3–0.4 grams of high-quality protein per kilogram of body weight, with older adults often benefiting from the higher end.

Daily protein intake still matters most, but distributing it across three to five meals gives your muscles repeated opportunities to respond. Aim for roughly 0.3–0.4 grams per kilogram per meal rather than fearing that a larger serving will be wasted.

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