Testosterone is an androgen, a male sex hormone, though females need it too. In males, low testosterone has been associated with low libido and poor health outcomes, such as the development of metabolic syndrome. In males and females, low testosterone has been associated with depression.
Middle-aged and older males see their testosterone levels decrease by 0.4% to 1.6% per year, and many are the males who experience lower-than-average levels even in their 30s. Fortunately, quality sleep, physical activity, weight management, magnesium, zinc, and vitamin D can all help sustain healthy testosterone levels.
To optimize your testosterone levels, you don’t only need the proper amounts of vitamins and minerals; you also need to sleep well, exercise, and keep a healthy weight.
Lack of sleep causes numerous health issues. Notably, it decreases testosterone production and facilitates fat gain (and we’ll see that fat gain itself can impair testosterone production). Getting enough quality sleep is so important that we will be publishing an article on that soon.
Resistance training can raise testosterone levels for 15–30 minutes post-exercise. More importantly, it can benefit testosterone production in the long run by improving body composition and reducing insulin resistance.
Overtraining, however, is counterproductive. Prolonged endurance exercise especially can cause your testosterone to drop. Ensuring adequate recovery time will help you receive the full benefits of physical activity.
Weight gain and the associated chronic diseases, such as cardiovascular disease and type 2 diabetes, are strongly linked to decreases in testosterone, particularly in middle-aged and older men.
If you gain weight (as fat), your testosterone production drops. Fortunately, if you lose weight, your testosterone production can climb back up.
Grossmann and Matsumoto. J Clin Endocrinol Metab. 2017 March 1.
As this figure shows, observational studies have seen consistent results: in people who are overweight or obese, the greater the weight loss, the greater the testosterone increase.
These results have been echoed in clinical trials. A meta-analysis of 24 RCTs looked at weight loss caused by diet or bariatric surgery: In the diet studies, the average 9.8% weight loss was linked to a testosterone increase of 2.9 nmol/L (84 ng/dL). In the bariatric-surgery studies, the average 32% weight loss was linked to a testosterone increase of 8.7 nmol/L (251 ng/dL).
You need not lose huge amounts of weight to see a bump in testosterone levels, either: a 5% loss in weight can increase total testosterone by 2 nmol/L (58 ng/dL).
Quality sleep, physical activity, and weight management support healthy testosterone levels, and they’re synergistic: If you lack sleep, you find it harder to exercise and easier to gain fat. If you exercise, you find it easier to sleep and to keep a healthy weight. If your weight is healthy, you find it easier to exercise and easier to sleep.
If you want to know more about the lifestyle-testosterone connection, check out our infographic and article here.
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Only a few supplements have been shown to benefit testosterone production. Among those, the evidence mostly supports vitamin D and zinc, followed by magnesium. Two caveats should be kept in mind, however:
Supplementing with a vitamin or mineral is likely to help you only if you suffer from a deficiency or an insufficiency in this vitamin or mineral.
Correcting a deficiency or an insufficiency is more likely to raise your testosterone levels if they are low.
Vitamin D helps regulate testosterone levels. Ideally, you would produce all the vitamin D you need through sunlight exposure, but if you live far from the equator, have dark skin, or simply spend most of your time inside, you may need to complement your own production with the help of foods or supplements.
In Canada and the United States, the Recommended Daily Allowance (RDA) for vitamin D falls between 400 and 800 IU (International Units). These amounts, which have been criticized as too low by some, are attainable from only a few food sources, which is why vitamin D has become a popular supplement.
Zinc deficiency can hinder testosterone production. Like magnesium, zinc is lost through sweat, so athletes and other people who sweat a lot are more likely to be deficient. Although dietary zinc is mostly found in animal products, zinc-rich foods include some grains and nuts.
In males with low magnesium levels and low testosterone levels, an increase in magnesium intake can translate into an increase in testosterone production, both directly and (since one of magnesium’s functions in your body is to help convert vitamin D into its active form) indirectly.
While more common in the older population, magnesium deficiency isn’t unknown in younger people (notably athletes, since, link zinc, magnesium is lost through sweat). Yet getting your RDA should be easy: magnesium-rich foods are numerous and can fit all kinds of diets.
If you still feel the need to supplement, keep in mind that supplemental magnesium is more likely than dietary magnesium to cause adverse effects, which is why the FDA fixed at 350 mg the Tolerable Upper Intake Level for magnesium supplementation in adults. Also, you may want to avoid magnesium oxide: it has poor bioavailability (rats absorbed only 15% in one study, and humans only 4% in another) and can cause intestinal discomfort and diarrhea.
Numerous products are advertised as Testosterone Boosters, but the vast majority don’t work, though some can make you believe they do by boosting your libido. Maca, for instance, can enhance libido without affecting testosterone.
Maybe the most popular “testosterone booster” is D-aspartic acid (DAA, or D-aspartate). DAA did increase testosterone levels in two studies, one that used 2.66 g/day and the other 3.12 g/day, but two later studies found no increase with 3 g/day, and the latest even noted a decrease with 6 g/day.
Eat a healthy, balanced diet, so as to avoid nutritional deficiencies. If your testosterone levels are low, pay attention to your intakes of vitamin D, zinc, and magnesium. Be skeptical of supplements marketed as testosterone boosters; there’s a good chance the only thing these supplements will boost is their manufacturers’ bottom lines.
The interventions discussed in this article will work best for men with low testosterone, but they can also help men with normal testosterone to sustain their levels, year after year.
Supplements can help, but they can’t replace a healthy lifestyle. In order to optimize your testosterone production, make sure you get enough quality sleep on a daily basis, incorporate some resistance training into your workout program, and monitor your weight.
Try to get enough vitamin D, zinc, and magnesium through your diet. However, if dietary changes prove insufficient, supplementation can help make up the difference.
Not all testosterone deficiencies can be fixed through lifestyle or supplement interventions. It may be prudent to speak with your doctor if the options discussed above do not yield sufficient results.
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- The relationship between libido and testosterone levels in aging men. J Clin Endocrinol Metab. (2006) Travison TG, et al.
- Low total testosterone levels are associated with the metabolic syndrome in elderly men: the role of body weight, lipids, insulin resistance, and inflammation; the Ikaria study. Rev Diabet Stud. (2013) Chrysohoou C, et al.
- High Rates of Depression and Depressive Symptoms among Men Referred for Borderline Testosterone Levels. J Sex Med. (2015) Westley CJ, Amdur RL, Irwig MS.
- Salivary testosterone: associations with depression, anxiety disorders, and antidepressant use in a large cohort study. J Psychosom Res. (2012) Giltay EJ, et al.
- Age trends in the level of serum testosterone and other hormones in middle-aged men: longitudinal results from the Massachusetts male aging study. J Clin Endocrinol Metab. (2002) Feldman HA, et al.
- Hypothalamic-pituitary-testicular axis disruptions in older men are differentially linked to age and modifiable risk factors: the European Male Aging Study. J Clin Endocrinol Metab. (2008) Wu FC, et al.
- Age-specific population centiles for androgen status in men. Eur J Endocrinol. (2015) Handelsman DJ, et al.
- Sleep deprivation lowers reactive aggression and testosterone in men. Biol Psychol. (2013) Cote KA, et al.
- Effect of 1 week of sleep restriction on testosterone levels in young healthy men. JAMA. (2011) Leproult R, Van Cauter E.
- Association between sleep and morning testosterone levels in older men. Sleep. (2007) Penev PD.
- Sleep deprivation and adaptive hormonal responses of healthy men. Arch Androl. (1989) González-Santos MR, et al.
- Sleep deprivation reduces circulating androgens in healthy men. Arch Androl. (1983) Cortés-Gallegos V, et al.
- Insufficient sleep undermines dietary efforts to reduce adiposity. Ann Intern Med. (2010) Nedeltcheva AV, et al.
- Acute and chronic effects of resistance exercise on the testosterone and cortisol responses in obese males: a systematic review. Physiol Res. (2014) O'Leary CB, Hackney AC.
- Hormonal responses and adaptations to resistance exercise and training. Sports Med. (2005) Kraemer WJ, Ratamess NA.
- Relationship between stress hormones and testosterone with prolonged endurance exercise. Eur J Appl Physiol. (2005) Daly W, et al.
- Chronic Low Testosterone Levels in Endurance Trained Men: The Exercise- Hypogonadal Male Condition. J Biochem Physiol. (2018) Hackney AC, Aggon E.
- Low testosterone in men with type 2 diabetes: significance and treatment. J Clin Endocrinol Metab. (2011) Grossmann M.
- Characteristics of secondary, primary, and compensated hypogonadism in aging men: evidence from the European Male Ageing Study. J Clin Endocrinol Metab. (2010) Tajar A, et al.
- Correlates of low testosterone and symptomatic androgen deficiency in a population-based sample. J Clin Endocrinol Metab. (2008) Hall SA, et al.
- A Perspective on Middle-Aged and Older Men With Functional Hypogonadism: Focus on Holistic Management. J Clin Endocrinol Metab. (2017) Grossmann M, Matsumoto AM.
- Body weight loss reverts obesity-associated hypogonadotropic hypogonadism: a systematic review and meta-analysis. Eur J Endocrinol. (2013) Corona G, et al.
- Age-associated changes in hypothalamic-pituitary-testicular function in middle-aged and older men are modified by weight change and lifestyle factors: longitudinal results from the European Male Ageing Study. Eur J Endocrinol. (2013) Camacho EM, et al.
- Effect of vitamin D supplementation on testosterone levels in men. Horm Metab Res. (2011) Pilz S, et al.
- Association of vitamin D status with serum androgen levels in men. Clin Endocrinol (Oxf). (2010) Wehr E, et al.
- Dietary Reference Intakes for Calcium and Vitamin D. Institute of Medicine (US) Committee to Review Dietary Reference Intakes for Vitamin D and Calcium, et al.
- Letter to Veugelers, P.J. and Ekwaru, J.P., A statistical error in the estimation of the recommended dietary allowance for vitamin D. Nutrients 2014, 6, 4472-4475; doi:10.3390/nu6104472. Nutrients. (2015) Heaney R, et al.
- A statistical error in the estimation of the recommended dietary allowance for vitamin D. Nutrients. (2014) Veugelers PJ, Ekwaru JP.
- Effect of zinc administration on plasma testosterone, dihydrotestosterone, and sperm count. Arch Androl. (1981) Netter A, Hartoma R, Nahoul K.
- Correlation between serum testosterone level and concentrations of copper and zinc in hair tissue. Biol Trace Elem Res. (2011) Chang CS, et al.
- Relationships between micronutrient losses in sweat and blood pressure among heat-exposed steelworkers. Ind Health. (2016) Tang YM, et al.
- Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc. Institute of Medicine (US) Panel on Micronutrients.
- Zinc for the common cold. Cochrane Database Syst Rev. (2011) Singh M, Das RR.
- A randomized controlled trial of the effect of zinc as adjuvant therapy in children 2-35 mo of age with severe or nonsevere pneumonia in Bhaktapur, Nepal. Am J Clin Nutr. (2010) Valentiner-Branth P, et al.
- Zinc-induced copper deficiency: a report of three cases initially recognized on bone marrow examination. Am J Clin Pathol. (2005) Willis MS, et al.
- Fatal copper deficiency from excessive use of zinc-based denture adhesive. Am J Med Sci. (2010) Afrin LB.
- The Interplay between Magnesium and Testosterone in Modulating Physical Function in Men. Int J Endocrinol. (2014) Maggio M, et al.
- Role of Magnesium in Vitamin D Activation and Function. J Am Osteopath Assoc. (2018) Uwitonze AM, Razzaque MS.
- A review of magnesium intake in the elderly. A cause for concern?. Magnes Res. (1992) Costello RB, Moser-Veillon PB.
- Update on the relationship between magnesium and exercise. Magnes Res. (2006) Nielsen FH, Lukaski HC.
- Nutritional Needs in Hot Environments, “Influence of Exercise and Heat on Magnesium Metabolism”. National Academies Press (US). (1993) Institute of Medicine (US) Committee on Military Nutrition Research; Marriott BM, editor. Washington (DC).
- Excretion of sodium, potassium, magnesium and iron in human sweat and the relation of each to balance and requirements. J Nutr. (1963) Consolazio CF, et al.
- Pharmacokinetic Studies of Orally Administered Magnesium Oxide in Rats. Yakugaku Zasshi. (2017) Yoshimura Y, et al.
- Bioavailability of US commercial magnesium preparations. Magnes Res. (2001) Firoz M, Graber M.
- Acceptability, Safety, and Efficacy of Oral Administration of Extracts of Black or Red Maca (Lepidium meyenii) in Adult Human Subjects: A Randomized, Double-Blind, Placebo-Controlled Study. Pharmaceuticals (Basel). (2016) Gonzales-Arimborgo C, et al.
- Subjective effects of Lepidium meyenii (Maca) extract on well-being and sexual performances in patients with mild erectile dysfunction: a randomised, double-blind clinical trial. Andrologia. (2009) Zenico T, et al.
- Effect of Lepidium meyenii (MACA) on sexual desire and its absent relationship with serum testosterone levels in adult healthy men. Andrologia. (2002) Gonzales GF, et al.
- A double-blind placebo-controlled trial of maca root as treatment for antidepressant-induced sexual dysfunction in women. Evid Based Complement Alternat Med. (2015) Dording CM, et al.
- D-asparate, a key element for the improvement of sperm quality. Advances in Sexual Medicine. (2012) G. D’Aniello, et al.
- The role and molecular mechanism of D-aspartic acid in the release and synthesis of LH and testosterone in humans and rats. Reprod Biol Endocrinol. (2009) Topo E, et al.
- Three and six grams supplementation of d-aspartic acid in resistance trained men. J Int Soc Sports Nutr. (2015) Melville GW, Siegler JC, Marshall PW.
- D-aspartic acid supplementation combined with 28 days of heavy resistance training has no effect on body composition, muscle strength, and serum hormones associated with the hypothalamo-pituitary-gonadal axis in resistance-trained men. Nutr Res. (2013) Willoughby DS, Leutholtz B.