What does the evidence show about Protein intake's effects?

Read Off Label rates the evidence for Protein intake as Very Strong and the benefit magnitude as high, producing an overall grade of S (9.3/10). RDA of 0.

What safety findings are reported for Protein intake?

Protein intake has a low risk profile in the database. Low (high intake safe in healthy kidneys) Legal status: N/A (dietary).

What doses or routes are reported for Protein intake?

1.2-1.6 g/kg/day for active adults; up to 2.0+ g/kg for resistance trainees; ~30-40g per meal This is context from studies, approved labeling, clinical practice, or documented use; it is not individualized guidance and does not establish safety.

Rankings / Essentials — Nutrients

Protein intake

Essentials · Macronutrient

Tier S

Reviewed by Read Off Label · Last reviewed Jun 8, 2026 · How we grade

9.3 / 10

Tier S

Ev 10 Bn 8 Sf 9

Bottom line

Read Off Label grades Protein intake as S (9.3/10) based on very strong evidence, high benefit magnitude, and a low-risk safety profile.

RDA of 0.

Studied, labeled, or reported-use context: 1. — N/A; not individualized guidance.

What the evidence says

RDA of 0.8 g/kg is a minimum to prevent deficiency, not an optimum. Older adults benefit from higher intake to combat sarcopenia.

Mechanism

Provides amino acids for muscle protein synthesis; satiety signaling; preserves lean mass during weight loss and aging

Studied, labeled, or reported dose & route

1.2-1.6 g/kg/day for active adults; up to 2.0+ g/kg for resistance trainees; ~30-40g per meal

This records doses and routes described in studies, approved labeling, clinical practice, or documented use. It is not individualized guidance and does not establish safety; context changes with indication, formulation, health history, monitoring, and other medicines.

Citations

A link means the source informed this entry; it does not mean every claim on the page comes from that source. If a citation looks wrong or you want a claim re-checked, send a correction.

Common questions

What does the evidence show about Protein intake's effects?: Read Off Label rates the evidence for Protein intake as Very Strong and the benefit magnitude as high, producing an overall grade of S (9.3/10). RDA of 0.
What safety findings are reported for Protein intake?: Protein intake has a low risk profile in the database. Low (high intake safe in healthy kidneys) Legal status: N/A (dietary).
What doses or routes are reported for Protein intake?: 1.2-1.6 g/kg/day for active adults; up to 2.0+ g/kg for resistance trainees; ~30-40g per meal This is context from studies, approved labeling, clinical practice, or documented use; it is not individualized guidance and does not establish safety.
How does Protein intake work?: Provides amino acids for muscle protein synthesis; satiety signaling; preserves lean mass during weight loss and aging

This is an independent synthesis of published research by a non-clinician. Scores are opinions supported by citations, not prescriptions. See the full disclaimer and methodology for how this score was produced and what it does and doesn't mean.