Testosterone is a hormone that plays an important role in the development of male reproductive organs and secondary sexual characteristics. It also influences muscle mass, strength, and physical endurance.
So it’s no wonder that many men are interested in finding ways to increase testosterone levels naturally. One popular suggestion is to drink milk. But does drinking milk actually increase testosterone levels? Let’s take a look at what the research says.
Testosterone and Whey Protein
A study published in the journal Nutrition & Metabolism looked at the effects of whey protein on testosterone levels in young men over a 10-week period.
The results showed that supplementing with whey protein increased total and free testosterone concentrations when compared to placebo supplementation.
As milk is one of the top sources of whey protein, this suggests that drinking milk could potentially boost testosterone levels.
Testosterone and Calcium
Calcium is another nutrient found in milk which may influence testosterone production.
Research has shown that calcium can increase both luteinizing hormone (LH) and follicle-stimulating hormone (FSH).
Both LH and FSH are responsible for stimulating testicular cells to produce more testosterone.
Therefore, consuming milk may help support optimal testicular function and increased testosterone production via its calcium content.
Milk Fat and Testosterone
Milk fat may also have an effect on testosterone production. A study published in Reproductive Biology observed the impact of different fat concentrations (low, medium, high) on serum total testosterone concentrations in rats over 4 weeks of supplementation.
The results indicated that rats fed a high-fat diet had significantly higher serum total testosterone concentrations than those fed a low-fat diet or control group not supplemented with any fats from milk.
This suggests that drinking full-fat milk may potentially lead to higher levels of circulating testosterone compared to non-fat or low-fat milks.
Conclusion:
The research suggests that there may be some truth to the notion that drinking milk can boost your testosterone levels as it contains both whey protein and calcium—two nutrients known to influence hormonal balance—as well as natural fats which appear to promote higher circulating levels of total serum testosterone when consumed in adequate amounts.
That said, additional research is needed before any firm conclusions can be made regarding how consuming milk affects human health outcomes such as muscle growth or athletic performance related to increased hormones like testosterone or other sex hormones like estrogen or progesterone.

Wilbur is a fitness fanatic who has been writing about his experiences for over ten years. He started his own publications on topics such as bodybuilding, Steroids, SARMs, and Fitness, and he doesn’t claim to know everything – what he talks about is something he’s done himself. From anabolic steroids to peptides, to HGH, SARMs, and supplements, Wilbur has tried it all at some point in his life and can relate to the experience.