How to Increase Testosterone Naturally: 6 Levers Ranked by Evidence

Short answer: The most reliable ways to increase testosterone naturally are losing excess body fat, sleeping at least seven hours a night, lifting weights two or three times a week and keeping alcohol low. Vitamin D and zinc help mainly when you are actually deficient, so test before you supplement. If you have symptoms such as low libido, fewer morning erections or constant fatigue, ask your doctor for two morning blood tests rather than guessing.

Key Takeaways

• Weight loss is the strongest lifestyle lever for men carrying extra fat: in pooled trials, a 5% weight loss was linked to roughly a 58 ng/dL rise in total testosterone.^[2][3]
• Sleep matters fast: one week of sleeping under 5 hours a night lowered daytime testosterone by 10 to 15% in healthy young men.^[1]
• Resistance training helps mostly over time, by improving body composition and insulin sensitivity, not through the short spike after a workout.^[3]
• Heavy and chronic drinking is associated with lower testosterone; light, occasional drinking is not the main problem.^[6]
• Vitamin D and zinc are not general boosters. A 2026 meta-analysis of randomized trials found no clear effect of vitamin D on total testosterone.^[7]
• Low testosterone is diagnosed with symptoms plus repeated morning blood tests, so a lab result should guide what you do next.^[4][5]

How Testosterone Works and Why Levels Drop

Testosterone is made mainly in the testicles, under signals from the hypothalamus and pituitary gland in the brain. Levels peak in the morning and fall during the day, which is why doctors test early. According to Cleveland Clinic, levels naturally drop about 1% per year starting in the late 30s, and providers generally consider an adult level below 300 ng/dL low, but they only call it male hypogonadism when symptoms are also present.^[4] For the full range by age, see our guide to normal testosterone levels.

That slow age-related decline is not the whole story. Cleveland Clinic lists obesity, poorly managed type 2 diabetes, obstructive sleep apnea, alcohol use disorder, opioid use, anabolic steroid use and some chronic diseases as common causes or risk factors.^[4] Several of those are things you can change. That is the real meaning of “increasing testosterone naturally”: removing the habits and conditions that are pushing your level below where it would otherwise sit.

The Evidence, Lever by Lever

The table below ranks the main natural approaches by how strong the human evidence is. It separates what research has actually shown from what you can do this week.

1. Lose excess body fat

This is the biggest lever for most men who are overweight. A 2013 systematic review and meta-analysis by Corona and colleagues in the European Journal of Endocrinology pooled 24 studies and found that both a low-calorie diet and bariatric surgery significantly increased total testosterone. The amount of weight lost was the strongest predictor of how much testosterone rose, and estradiol fell as weight came off.^[2] Examine.com, summarizing a 24-study meta-analysis, puts it in practical terms: diet-induced weight loss averaging 9.8% was linked to a rise of about 84 ng/dL, and a 5% loss to about 58 ng/dL.^[3]

Fat tissue, especially around the belly, is metabolically active and is linked to lower testosterone and higher estrogen. You do not need extreme dieting. A modest, steady calorie deficit with enough protein, combined with strength training, is the approach most likely to stick. For meal ideas, see our list of foods that support healthy testosterone.

2. Sleep at least seven hours

Much of your daily testosterone is released during sleep, so cutting sleep short cuts production. In a University of Chicago study published in JAMA in 2011, 10 healthy men with an average age of 24 slept up to 10 hours a night for three nights, then under 5 hours a night for eight nights. After the short-sleep week, their daytime testosterone was 10 to 15% lower. The researchers noted that normal aging lowers testosterone by about 1 to 2% a year, so one week of short sleep had an effect similar to aging 10 to 15 years.^[1]

Cleveland Clinic recommends about seven hours a night and treating sleep apnea if you have it, since obstructive sleep apnea is a recognized cause of low testosterone.^[4] If you snore loudly, stop breathing at night or wake up unrefreshed, ask your doctor about a sleep study. Our guide to sleep routines for men covers the basics.

3. Lift weights, but do not overtrain

Resistance training raises testosterone for about 15 to 30 minutes after a session. That short spike is not what matters. The lasting benefit comes from more muscle, less fat and better insulin sensitivity, which all support healthier levels over time. Very long endurance sessions and overtraining without recovery can lower testosterone instead.^[3]

A simple plan: two or three full-body sessions a week built around compound lifts (squats or leg presses, deadlifts or hip hinges, rows, presses), progressing the weight gradually, plus daily walking. Leave at least one full rest day between hard sessions.

4. Keep alcohol low

A 2023 review in Expert Review of Endocrinology and Metabolism found that a small to moderate amount of alcohol can briefly raise testosterone, but consuming large volumes is associated with lower serum testosterone, and excessive, especially chronic, drinking harms testosterone production. The proposed mechanisms include activation of the stress hormone axis, inflammation and oxidative stress.^[6] Cleveland Clinic also lists alcohol use disorder among the causes of both testicular and pituitary related low testosterone.^[4] In practice, the goal is to avoid heavy and binge drinking, which also wrecks sleep and adds calories.

5. Vitamin D and zinc: only if you are low

These two get the most marketing, but the evidence is narrower than the labels suggest. As Examine.com puts it, a vitamin or mineral supplement is likely to help only if you have a deficiency or insufficiency.^[3]

• Vitamin D: A 2026 systematic review and meta-analysis of randomized controlled trials in adult men found no clear effect of vitamin D supplementation on total testosterone or on free testosterone markers, with low certainty evidence.^[7] Correcting a confirmed deficiency is still good for general health, but do not expect a testosterone jump.
• Zinc: Zinc deficiency can impair testosterone production.^[3] The NIH Office of Dietary Supplements sets the RDA for adult men at 11 mg a day and the upper limit at 40 mg a day. Taking 50 mg or more for weeks can lower copper status and HDL cholesterol.^[8] Oysters are by far the richest food source, followed by beef, crab and pumpkin seeds.^[8]

6. Manage chronic stress

Ongoing stress keeps the body’s stress hormone system active, which is one of the pathways researchers link to lower testosterone.^[6] Stress also works indirectly: it shortens sleep, increases drinking and drives overeating. You do not need a special protocol. The basics above (sleep, training, less alcohol) are themselves among the most effective stress tools, and a short daily walk outdoors helps many men.

What About Testosterone Booster Supplements?

Most products sold as “testosterone boosters” have little high-quality human evidence behind them. Examine.com notes that D-aspartic acid raised testosterone in two early studies but not in later ones, and that maca affects libido without changing testosterone.^[3] Herbal research on ingredients such as tongkat ali is limited and product quality varies widely. If you choose a supplement, treat it as a complement to the lifestyle levers above, never a replacement, and pick a brand that discloses exact amounts and uses third-party testing.

Ultra Bann is a botanical male vitality supplement with seven herbs listed by dose on the label. You can see the formula on our shop page.

When to See a Doctor

Lifestyle changes are the first step, but they are not a substitute for a diagnosis. See a clinician if you notice any of the following, which Cleveland Clinic lists as symptoms of low testosterone:^[4]

• Low sex drive, fewer morning or spontaneous erections, or trouble getting or keeping an erection
• Low energy, depressed mood, or problems with concentration and memory
• Loss of muscle strength and endurance, or more body fat
• Loss of body hair, enlarged breast tissue, smaller testicles or hot flashes

The Endocrine Society’s 2018 clinical practice guideline recommends diagnosing low testosterone only when symptoms are present and fasting morning total testosterone is consistently low on repeated measurement with a reliable assay.^[5] Cleveland Clinic notes that testing usually requires two separate morning blood samples, and that a recent illness can temporarily lower your result.^[4] Your doctor may also check LH and prolactin to look for a pituitary cause. Read our overview of the signs of low testosterone before your appointment.

Cleveland Clinic describes nutrition and physical activity as first-line treatment, with other options considered if they do not help after 6 to 12 months or if symptoms are severe.^[4] Also tell your doctor about any opioid, steroid or other medication use, since these can lower testosterone.

Frequently Asked Questions

How fast can I increase testosterone naturally?

Sleep can change levels within about a week, as the University of Chicago study showed in the opposite direction.^[1] Weight loss and training take longer, usually months, and Cleveland Clinic suggests giving lifestyle changes 6 to 12 months before considering other treatment.^[4]

What is the single best natural way to raise testosterone?

For men who carry extra weight, losing body fat has the strongest evidence, with larger weight loss linked to larger increases.^[2] For lean men, fixing short sleep is often the quickest win.

Do vitamin D or zinc supplements boost testosterone?

Not reliably. Pooled randomized trials found no clear effect of vitamin D on total testosterone,^[7] and zinc mainly matters when you are deficient.^[3] A blood test tells you whether either is worth correcting.

Does lifting weights increase testosterone?

It causes a brief rise after each session, but the meaningful long-term effect comes from building muscle and losing fat. Avoid overtraining, which can lower testosterone.^[3]

What time of day should testosterone be tested?

In the morning, when levels are highest, and on two separate days. Guidelines call for repeated fasting morning measurements before a diagnosis.^[4][5]

References

1. University of Chicago Medicine. “Sleep loss lowers testosterone in healthy young men” (on the study “Effect of 1 Week of Sleep Restriction on Testosterone Levels in Young Healthy Men,” JAMA, 2011). uchicagomedicine.org
2. Corona G, Rastrelli G, Monami M, et al. Body weight loss reverts obesity-associated hypogonadotropic hypogonadism: a systematic review and meta-analysis. European Journal of Endocrinology. 2013;168(6):829-843. Summary via NCBI Bookshelf (DARE). ncbi.nlm.nih.gov
3. Examine.com. “How can you increase testosterone naturally?” examine.com
4. Cleveland Clinic. “Low Testosterone (Male Hypogonadism).” my.clevelandclinic.org
5. Bhasin S, Brito JP, Cunningham GR, et al. Testosterone Therapy in Men With Hypogonadism: An Endocrine Society Clinical Practice Guideline. Journal of Clinical Endocrinology and Metabolism. 2018. pubmed.ncbi.nlm.nih.gov
6. Smith SJ, Lopresti AL, Fairchild TJ. The effects of alcohol on testosterone synthesis in men: a review. Expert Review of Endocrinology and Metabolism. 2023;18(2):155-166. researchportal.murdoch.edu.au
7. Paez-Allendes L, Valenzuela-Fuenzalida JJ, Moya MP, et al. Vitamin D Supplementation, Total Testosterone, and Androgen Bioavailability Markers in Adult Men: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. MDPI, 2026. doi:10.3390/nu18132090. citedrive.com
8. NIH Office of Dietary Supplements. “Zinc: Fact Sheet for Health Professionals.” ods.od.nih.gov

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. This article is for information only and is not medical advice.