Minerals

Chromium

A trace mineral that enhances insulin sensitivity.

Chromium potentiates the action of insulin, improving glucose uptake into cells and supporting healthy blood sugar regulation. This is relevant for longevity because insulin resistance and elevated blood sugar are major drivers of aging, cardiovascular disease, and neurodegeneration. A systematic review found that chromium supplementation improved HbA1c and fasting glucose in people with type 2 diabetes.

Dosage

RDA: 35mcg for men, 25mcg for women (adequate intake)

Optimal for longevity: Researchers suggest 35-200mcg daily, particularly for individuals with blood sugar concerns.

Deficiency signs

Difficult to assess due to lack of reliable biomarkers; marginal deficiency may be common in diets high in refined carbohydrates

  • Blood sugar fluctuations
  • Increased hunger and cravings
  • Fatigue after meals
  • Difficulty losing weight

Top food sources

Broccoli (1/2 cup)11mcg
Grape juice (1 cup)8mcg
Turkey breast (3 oz)1.7mcg
Whole wheat bread (2 slices)2mcg
Green beans (1/2 cup)1.1mcg

Research

Suksomboon N et al. (2014). Systematic review and meta-analysis of the efficacy and safety of chromium supplementation in diabetes. Journal of Clinical Pharmacy and Therapeutics, 39(3), 292-306.

Track your chromium intake

Biohack logs chromium alongside 22 other longevity nutrients in every meal.

Related reading

The 23 Nutrients That Predict How Long You Live

11 min read

Why Tracking Macros Misses the Point

8 min read