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SupplementScience

Whey Protein Dosage Guide

This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer

General Dosage

20-40g per serving, 1-3 times daily to meet total protein goals

Maximum dose: No established upper limit; total protein intake of 2.2g/kg/day is well-tolerated in healthy adults

Dosage Recommendations

General recommendation: 20-40g per serving, 1-3 times daily to meet total protein goals

Timing: Within a few hours of resistance training for optimal MPS; total daily intake matters more than precise timing

Dosage by Condition

Muscle building
20-40g post-workout + as needed to reach 1.6-2.2g/kg/dayStrong
Recovery
20-25g within 2 hours post-exerciseStrong
Weight management
25-50g per day as meal replacement or snackModerate
Sarcopenia prevention
30-40g per serving (older adults need higher leucine threshold)Moderate
General health
20-25g per serving, 1-2 times dailyStrong

Upper limit: No established upper limit; total protein intake of 2.2g/kg/day is well-tolerated in healthy adults

Timing & Absorption

Within a few hours of resistance training for optimal MPS; total daily intake matters more than precise timing

Can be taken with or without food.

References

  1. (). A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength in healthy adults. British Journal of Sports Medicine. DOI
  2. (). Ingestion of whey hydrolysate, casein, or soy protein isolate: effects on mixed muscle protein synthesis at rest and following resistance exercise in young men. Journal of Applied Physiology. DOI
  3. (). The effect of protein timing on muscle strength and hypertrophy: a meta-analysis. Journal of the International Society of Sports Nutrition. DOI
  4. (). International Society of Sports Nutrition Position Stand: protein and exercise. Journal of the International Society of Sports Nutrition. DOI
  5. (). Supplemental protein in support of muscle mass and health: advantage whey. Journal of Food Science. DOI