For the First Time, Testosterone Made It Into the Federal Dietary Guidelines. Here’s Why That’s Not Enough

For the first time, testosterone has made it into the federal Dietary Guidelines for Americans.

Buried on page 45 of the nearly 90-page document is a brief but meaningful acknowledgment of diet’s role in supporting healthy testosterone levels in men. It’s easy to miss amid debates about beef tallow and the food pyramid. But its inclusion signals something bigger: testosterone is increasingly being recognized as a crucial marker of health.

This comes on the heels of the December FDA advisory panel on testosterone, where experts emphasized the hormone’s role in overall health and longevity, and raised the possibility of reclassifying testosterone replacement therapy (TRT).

Together, these developments show the federal government is taking men’s hormone health seriously, positioning testosterone alongside other indicators tied to metabolic disease, cardiovascular risk, and long-term health outcomes.

Policy recognition is an important first step. But it doesn’t determine how care is delivered in practice.

What remains unresolved is how men are supposed to act on this information. Nutrition is foundational for healthy testosterone, but you can’t eat your way out of clinically low testosterone. Understanding when food can move the needle for an individual and when medication is needed is the critical gap traditional healthcare has yet to address.

The Truth About Diet and Testosterone

The testosterone section in the Dietary Guidelines appendix is brief; just eight sentences. Most of the recommendations are sound: get adequate protein without going to extremes, eat a balanced diet, make sure to exercise, and avoid excessive weight gain.

The emphasis on weight is particularly important. Men who lose weight do typically see higher testosterone levels. One reason is biological: fat tissue actively converts testosterone into estrogen and lowers sex hormone binding globulin (SHBG), reducing the amount of usable testosterone circulating in the blood. 

When men lose weight, those mechanisms begin to reverse. Research shows weight loss can increase testosterone by as much as 83 ng/dL in overweight men.¹ That’s a meaningful change and, for men hovering near the lower end of normal, it can make a real difference.

But it’s also where the limits of dietary intervention become clear.

A man with testosterone at 200 ng/dL (well below the healthy range of 300–1,000 ng/dL) who loses weight might reach 280 ng/dL. That’s an improvement, but he’d still be functionally deficient and likely symptomatic.

Put simply: Weight loss is a powerful intervention for testosterone. But for many men, it’s not enough.

Reading Conflicting Signals in Nutrition Guidance

Beyond weight loss, most dietary interventions have small and inconsistent effects on testosterone. This is especially true for dietary fat.

The Guidelines caution against very low-fat diets, citing studies that suggest they modestly reduce testosterone. Some research supports this idea.^{2 3} But the most recent data, a 2025 systematic review of 11 studies comparing low-fat versus higher-fat diets, found the mean difference in testosterone was roughly -15 to +14 ng/dL—essentially noise. ⁴

Outside of the section on testosterone, the federal government has softened its broader stance on saturated fats—allowing up to 10% of calories from sources like butter, beef tallow, and whole milk. For men focused on testosterone health, that can create confusion.

While fats are necessary for hormone production, excessive saturated fat intake is strongly associated with weight gain, insulin resistance, inflammation, and cardiovascular disease, all of which suppress testosterone.

That’s why clinicians who treat testosterone deficiency tend to emphasize unsaturated fats, such as olive oil, nuts, avocados, and omega-3–rich fish, rather than beef tallow.

The Missing Framework in Testosterone Care

Awareness of low testosterone is higher than ever, but awareness alone doesn’t tell men what to do next.

Not every man with low energy needs TRT. Not every man will see meaningful testosterone improvements from diet alone. 

Some men with borderline-low testosterone see meaningful improvements through weight loss, dietary changes, and increased physical activity. Others won’t, even when those factors are optimized. In those cases, TRT may be needed. 

Testosterone is now seen as a validated health indicator tied to metabolic disease, cardiovascular risk, and long-term outcomes. Federal policy has begun to reflect that reality. The next step is ensuring care does too. 

That means moving beyond one-size-fits-all advice and toward individualized assessment that clarifies when lifestyle changes are sufficient and when medical treatment is appropriate. At Hone, that’s the model we’ve built: comprehensive testing, clinician-led interpretation, and personalized care plans that integrate nutrition, lifestyle, and TRT when clinically indicated. 

Testosterone has earned its place in mainstream health. Now the healthcare system needs to treat it that way.

About the author

Saad Alam is the CEO and co-founder of Hone, a modern health optimization platform that helps men and women take charge of their hormones, metabolism, and longevity through advanced biomarker testing and personalized, clinician-guided care.