Protein "requirements" beyond the RDA: implications for optimizing health.
Level 5 - mechanism / opinion, no new human data
Narrative review and conference synopsis without systematic search methodology
PubMed 26960445 · doi:10.1139/apnm-2015-0550
What was done
This paper is a narrative synopsis summarizing presentations from the 2015 Canadian Nutrition Society conference, "Advances in Protein Nutrition across the Lifespan." It discusses literature on the health implications of consuming protein above the current Recommended Dietary Allowance (RDA) across aging, weight management, and athletic performance, as well as safety regarding bone and renal health.
What was found
The authors report that daily high-quality protein intakes in the range of 1.2 to 1.6 g/(kg·day) are more ideal for achieving optimal adult health outcomes than current RDA targets. Higher protein intakes are described as supporting sarcopenia prevention, appetite regulation, body weight and fat mass reduction compared with standard-protein diets, and post-exercise muscle protein remodeling. The authors state there is no evidence linking higher protein diets to renal disease or adverse bone health. No primary quantitative data, effect sizes, or study metrics were reported in the abstract.
Why it matters
The paper synthesizes expert consensus arguing that dietary protein guidelines should shift from preventing clinical deficiency to optimizing metabolic health, muscle maintenance, and satiety.
Limits
As a brief narrative conference synopsis, the paper lacks systematic review methods, structured inclusion/exclusion criteria, and quality assessment. The abstract reports no sample sizes, study counts, or quantitative outcome data.
Cited by
- supports A protein intake of 1.2 to 1.6 g per kilogram of body weight is sufficient for health benefits in most people.