How to Boost Testosterone Naturally: 8 Methods Ranked by Evidence

September 30, 2026

Testosterone declines slowly with age, about 1% a year after 30 on average. But many men over 40 have lower levels than they should for reasons they can change: sleep, weight, inactivity, alcohol and stress. Before you buy anything, it helps to know which natural approaches have strong evidence and which are mostly marketing. Here they are, ranked.

Ranked by strength of evidence

1. Weight: the biggest lever

Fat tissue converts testosterone into estrogen, and belly fat is linked to lower testosterone. Losing excess weight is the single most effective natural step for most men over 40. Measure your waist and see our guide to waist size after 40.

2. Sleep: where testosterone is made

Most daily testosterone release happens during sleep. Short sleep and untreated sleep apnea both lower levels. If you snore loudly or wake up tired, read our guide to sleep apnea and testosterone.

3. Strength training

Heavy, multi-joint exercises like squats, deadlifts, rows and presses produce the biggest response. Our home test for grip strength is a good way to track progress.

Food that supports healthy levels

Protein, healthy fats, zinc-rich foods (oysters, beef, pumpkin seeds) and vitamin D (fatty fish, eggs, sun) all play a role. See our grocery list for men’s vitality, zinc for men over 40 and vitamin D for men over 40.

Should you get tested?

Yes, if you have symptoms such as low energy, low desire, loss of muscle or low mood. Testing should be done in the morning and usually repeated. Our guide to free vs total testosterone explains how to read your results.

4. Manage stress and cortisol

Cortisol and testosterone tend to move in opposite directions. When stress stays high for weeks, cortisol stays elevated, and studies link this pattern with lower testosterone and poorer sleep. You cannot remove every stressor, but you can give your body regular signals of recovery: a daily walk outdoors, slow breathing for five minutes, time with friends, and clear boundaries around work in the evening.

5. Limit alcohol

Heavy drinking is consistently linked with lower testosterone and poorer sleep quality. Moderate drinking has a smaller effect, but alcohol late in the evening still disrupts deep sleep, which is when much of the day’s testosterone is produced. If you drink, keep it moderate and earlier in the evening, and include alcohol-free days each week.

6. Get enough vitamin D and zinc

Vitamin D and zinc are both involved in normal testosterone production. Deficiency in either is linked with lower levels, but taking extra when your levels are already adequate has not been shown to raise testosterone further. Sunlight, fatty fish and fortified foods provide vitamin D. Oysters, beef, pumpkin seeds and chickpeas provide zinc. A blood test can tell you whether you are actually low before you supplement.

7. Stay active every day, not just at the gym

Workouts matter, but so does the rest of the day. Men who sit for long hours tend to have more belly fat and lower energy. Standing breaks, walking meetings and 7,000 to 10,000 steps a day support a healthy weight and better insulin sensitivity, both of which are linked with healthier hormone levels.

8. Review your medications with your doctor

Some medications, including certain pain relievers, steroids and medications for mood or sleep, can affect hormone levels. Never stop a prescribed medication on your own, but it is reasonable to ask your doctor whether any of your treatments could be contributing to low energy or low desire.

What about testosterone boosters sold online?

Many products marketed as testosterone boosters make big promises. Independent reviews have found that most have little evidence behind their claims, and some contain ingredients that are not listed on the label. If you are considering any supplement, choose one with a transparent ingredient list, third-party testing and realistic claims, and discuss it with your doctor, especially if you take other medications.

How long does it take to see results?

Lifestyle changes work gradually. Improvements in sleep and stress can influence how you feel within a few weeks, while changes linked to weight loss and strength training usually take two to three months. If you want to measure the effect, ask your doctor about a repeat morning blood test after three months of consistent habits.

Frequently asked questions

How long does it take to raise testosterone naturally?

Sleep changes can show within weeks. Weight loss and strength training usually take 2 to 6 months to make a measurable difference.

Does intimacy or abstinence change testosterone?

Short-term fluctuations exist, but abstinence is not a reliable way to raise testosterone.

Sources

• Leproult & Van Cauter, JAMA: Sleep restriction and testosterone
• American Urological Association: Testosterone guideline
• Harvard Health Publishing: Men’s health
• FDA: Medication health fraud

This article is for general information and does not replace advice from your doctor.