The Claim
In young males with vitamin D deficiency who are undergoing resistance training, daily supplementation with 25 grams of whey protein and 4000 IU of vitamin D3 for 6 weeks causes significant improvements in anabolic hormone levels, including increased serum testosterone, IGF-1, and irisin, and reduced myostatin, compared to resistance training alone.
What the research says
Not yet evaluated
We are still looking at what the research says.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
If young guys who don't have enough vitamin D lift weights and also take a combo of whey protein and a high dose of vitamin D every day for six weeks, their body's muscle-building hormones go up and muscle-limiting hormones go down—better than just lifting weights alone.
See the scientific wording
In vitamin D-deficient young males undergoing resistance training, combined supplementation with 25 grams of whey protein and 4000 IU of vitamin D3 daily for 6 weeks causes significant improvements in anabolic hormone levels, including increases in serum testosterone, IGF-1, and irisin, and reductions in myostatin, compared to resistance training alone.
Score breakdown, mechanism chain, raw evidence, ideal studies needed
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.