Does Sunshine Increase Testosterone? What Experts Say

  • Vitamin D supplementation might increase testosterone levels (1).
  • UV light exposure may be not be enough to positively impact serum testosterone (2).
  • Visible light exposure has also been shown to elevate testosterone levels (3).
Does Sunshine Increase Testosterone What Experts Say

If you're someone who's interested in optimizing your testosterone levels, you may have heard that spending time in the sun can help. But is there any truth to this claim? Can sunshine really increase testosterone levels? The answer may surprise you. While there is some evidence to suggest that exposure to sunlight may be linked to higher testosterone levels, the science behind this claim is far from conclusive. In this article, we'll dive into the research on sunshine and testosterone and explore what experts have to say on the matter. Whether you're looking to enhance your athletic performance, improve your mood, or simply curious about the effects of sunlight on your body, you won't want to miss this fascinating discussion. So does sunshine increase testosterone? Let's get started and separate fact from fiction when it comes to the relationship between sunlight and testosterone.

The Role of Sunlight in Testosterone Production

To answer the question of whether or not exposure to sunlight raises testosterone levels, we must first examine the function of sunlight in the creation of testosterone. The testicles in males and the ovaries in women are responsible for producing the hormone testosterone, respectively. Nevertheless, other variables, like sun exposure, might affect testosterone production.

While sunlight aids in vitamin D synthesis, it also contributes to testosterone production. Vitamin D is a crucial component for maintaining healthy bones, a strong immune system, and strong muscles. Moreover, it helps in the creation of testosterone. Sunlight causes the skin to create vitamin D, which is subsequently activated so that it can be utilized by the body. Vitamin D3 is the active form of vitamin D and is required for testosterone synthesis.

Yet sunshine is only one of several elements that affect testosterone production, so that shouldn't be overemphasized. Diet, physical activity, and enough rest all play important roles.

Studies on the Relationship Between Sunlight and Testosterone Levels

Some research has shown a correlation between exposure to sunshine and elevated testosterone levels, although this is still debated. Clinical Endocrinology released research showing that males who got more sun had greater testosterone levels than those who didn't. Testosterone levels were also shown to be greater in males with higher vitamin D levels (1).

Vitamin D supplementation significantly increased testosterone levels in males, according to separate research published in the journal Hormone and Metabolic Research. However, the research revealed that the boost in testosterone levels was most noticeable in males whose testosterone levels were very low to begin with.

While these studies provide preliminary evidence between sun exposure and testosterone levels, it must be stressed that this association is far from proven. To completely understand how sunshine affects testosterone levels, further study is required.

Optimizing Testosterone Levels Through Sunlight Exposure

Although there is no definitive evidence linking sun exposure with increased testosterone, there are steps you can take to maximize the effect of sunshine on your body. Increasing your exposure to sunlight is an effective strategy in this regard. Get 15–30 minutes of sun exposure daily, ideally early or late in the day when the sun is weaker.

The quantity of sun exposure necessary to maximize testosterone levels may also vary based on your skin type, geographic area, and other variables. If you're uncertain, talk to your doctor or a competent healthcare practitioner about how much sun exposure is appropriate for you.

Other Benefits of Sunlight Exposure

Sunlight may not be the silver bullet for boosting testosterone, but it does have many other positive health effects. Vitamin D, for instance, is crucial for bone health, immunological function, and muscular function, yet it can only be produced by exposure to sunlight. Improved mood and fewer depressive symptoms have also been related to spending time in the sun.

Sunlight exposure has other health benefits, including the regulation of circadian rhythms. Time spent in natural light has been shown to reset the body's internal clock and enhance the quality of subsequent sleep.

Risks of Overexposure to Sunlight

Although there are many health advantages to sunbathing, you should still take precautions like applying sunscreen and staying in the shade to prevent overexposure to the sun's UV radiation. Premature aging, skin issues, and an increased risk of skin cancer are all possible outcomes of excessive sun exposure.

Using protective clothes, applying sunscreen, and limiting time spent outside, particularly during the sun's peak hours, may help prevent UV damage. You'll be less likely to get sunburned if you do this.

Supplementing with Vitamin D for Testosterone

Vitamin D supplements might help boost testosterone levels if you don't receive enough natural sunlight. Increasing your vitamin D intake using vitamin D pills is a viable option.

Vitamin D is beneficial, but too much of it might be dangerous. Consult your physician or other healthcare provider before beginning any new supplement program.


Exposure to sunshine may be associated with higher testosterone levels, although the exact mechanism by which this occurs is not well known. Nevertheless, further study is required to properly comprehend the connection.

Spending more time in the sun may be an excellent place to start if you're trying to boost your testosterone levels. Nevertheless, the dangers of too much sun exposure must be taken into account, and vitamin D supplements should be used if necessary.

Sunlight exposure has several positive effects on health, including elevating mood, enhancing the quality of sleep, and boosting vitamin D synthesis. Therefore, go outdoors and soak up some rays; they're good for you in more ways than you would think.

Enjoy reading? Check out this related article: Intermittent Fasting & Testosterone: What Researchers Say

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  1. Pilz, S., Frisch, S., Koertke, H., Kuhn, J., Dreier, J., Obermayer-Pietsch, B., Wehr, E., & Zittermann, A. (2011). Effect of vitamin D supplementation on testosterone levels in men. Hormone and Metabolic Research, 43(3), 223-225. doi:10.1055/s-0030-1269854
  2. Emamjomeh S, Segura LE, Cotter JA, Schick EE. Acute Ultraviolet Light Exposure and Post-Resistance Exercise Serum Testosterone: A Pilot Study in Older Men. Int J Exerc Sci. 2020;13(2):607-614. Published 2020 May 1.
  4. Weller, R. B. (2010). Sunscreen and skin aging: Is prevention better than cure? Journal of Investigative Dermatology Symposium Proceedings, 14(1), 70-72. doi:10.1038/jidsymp.2010.12


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