The Claim

A daily protein intake of 1.5 g per kg of lean body mass (approximately 1.0–1.2 g per kg of body weight) maintains maximal muscle protein synthesis rates in healthy older adults, irrespective of the distribution pattern of protein intake across meals.

Source: Comparing Even with Skewed Dietary Protein Distribution Shows No Difference in Muscle Protein Synthesis or Amino Acid Utilization in Healthy Older Individuals: A Randomized Controlled Trial

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
68score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Quantitative
1 study reviewed
In plain English

In healthy older adults, consuming 1.0 to 1.2 grams of protein per kilogram of total body weight each day is enough to keep muscle protein synthesis at its highest possible rate, whether the protein is spread evenly across meals or concentrated in fewer meals.

See the scientific wording

A daily protein intake of 1.5 g per kg of lean body mass (approximately 1.0–1.2 g per kg of body weight) is sufficient to maintain maximal muscle protein synthesis rates in healthy older adults, regardless of whether protein is distributed evenly or skewed across meals.

Why this might work

When a person consumes enough protein each day, the muscles take up all the amino acids they can use, turning on a molecular switch that tells the body to build new muscle proteins at the highest possible rate. It doesn't matter when the protein is eaten because the muscles only respond to the total amount available over the day, not how it's spread out.

Verified mechanismbased on 1 study

What the research says

1 study

  1. Study: Comparing Even with Skewed Dietary Protein Distribution Shows No Difference in Muscle Protein Synthesis or Amino Acid Utilization in Healthy Older Individuals: A Randomized Controlled Trial

    The study found that older adults who ate their protein all in one meal built muscle just as well as those who spread it out evenly — so how you distribute your protein across meals doesn’t matter for muscle growth. It also suggests that eating about 1.2 grams of protein per kilogram of body weight daily is enough to keep muscle building at its peak.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.