Research

Hormonal

The age-related decline in plasma IGF-I can be mitigated by high intakes of protein and minerals, resulting in IGF-I levels in older men comparable to those in younger men with lower intakes.

As you age, maintaining high protein and mineral intake is crucial for preserving IGF-I levels. This may help counteract the natural age-related decline in growth hormone and IGF-I, potentially supporting muscle mass and metabolic health.

GoodQualifiesHIGH confidence
As seen in Fig. 2, in the oldest group of men with high protein and mineral intakes, the median and interquartile range of circulating IGF-I was similar to that of men 10 years younger with intermediate intakes of these, and to that of men 20 years younger with relatively low intakes.
Edward L. Giovannucci et al. · PubMed · 2003

Why this rating

Observational data from a large cohort with biomarker validation.

Source

Nutritional predictors of insulin-like growth factor I and their relationships to cancer in men.

Edward L. Giovannucci et al. · PubMed · 2003

cross_sectional · n=753Cited 271×
Read the paper

This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →