Not long ago, fat was the villain of the nutrition world.
Many diets advised steering clear of it altogether, especially for those trying to lose weight or improve health.
But times have changed, and so has the science.
For men looking to optimize their testosterone levels, healthy dietary fat is not only beneficial—it’s essential.
Your body uses fat, particularly saturated and monounsaturated fats, to synthesize testosterone.
These fats help provide the building blocks needed to produce this vital hormone and support its function throughout the body.
Let’s begin with saturated fats, often misunderstood but critical for testosterone production.
One standout source is grass-fed beef.
Unlike conventional beef, grass-fed cuts contain more omega-3 fatty acids, vitamin K2, and conjugated linoleic acid (CLA), all of which contribute to better hormone balance.
Additionally, grass-fed beef is significantly richer in zinc—a mineral shown to positively impact testosterone levels.
A study from Biological Trace Element Research emphasizes the importance of zinc in supporting testosterone, particularly in men with deficiencies.
Eggs are another excellent option.

Whole eggs, including the yolks, are packed with HDL cholesterol, which your body converts into testosterone.
Many men shy away from yolks due to outdated cholesterol fears, but research has shown that dietary cholesterol doesn’t necessarily increase heart disease risk and is vital for hormone production.
Eating eggs a few hours before bed may also support overnight testosterone synthesis, as the body ramps up hormone production during deep sleep.
Salmon deserves special attention, too.
This fatty fish provides a potent combination of healthy fats and selenium, a mineral directly linked to testosterone support.
According to findings published in the International Journal of General Medicine, selenium supplementation in men has been associated with improvements in sperm quality and testosterone levels.
Now let’s turn to monounsaturated fats.
Olive oil is perhaps the most accessible and powerful source.
Research on healthy Moroccan men found that daily olive oil consumption increased testosterone levels by nearly 20% over three weeks.
The oil supports the activity of enzymes that convert cholesterol into testosterone, specifically in the Leydig cells found in the testes.
If you’re already cooking with olive oil, you’re ahead of the game.
Macadamia nuts are another great addition to a testosterone-boosting diet.
Unlike many nuts, which are high in polyunsaturated fats that can interfere with hormone production, macadamias are rich in monounsaturated fats and very low in PUFAs.
They’re easy to snack on and ideal for sustaining energy and hormone health throughout the day.
Lastly, Brazil nuts pack a powerful punch with their high selenium content and monounsaturated fat profile.
Just one or two nuts can supply the recommended daily intake of selenium.
Their hormonal benefits have earned them a place in nearly every testosterone-friendly diet.
Incorporating these foods into your routine doesn’t require drastic changes.
Simple swaps like choosing grass-fed over grain-fed beef, cooking with olive oil instead of processed sprays, or snacking on a handful of macadamia or Brazil nuts can make a big difference.
If you want to go deeper and get a full list of foods that support testosterone naturally, my 97 Foods That Boost Testosterone E-book is designed to give you the tools you need to turn your kitchen into a hormone-optimizing powerhouse.
With the right fats, your meals become more than fuel.
They become a foundation for strength, energy, and lasting hormonal health.
