What Men Actually Need to Eat: A Real Nutrition Guide for Husbands and Dads

Roughly 80% of nutrition content online is written for, and read by, women. Most of my own clients are women. But over the years, more and more of you have asked me what to tell your husband, your partner, your dad, your adult son.

Men's Health Month is a good time to actually answer that — and to give the men reading something more useful than the supplement-stack content they're getting from YouTube. Here's what men over 40 actually need to eat.

Does diet really affect testosterone?

Testosterone is the topic that drives the most myth-making aimed at men. Eat these foods to boost it. Avoid these foods that crash it. Most of it is overstated.

Here's the honest summary. Testosterone declines with age in roughly all men, modestly. Severe energy restriction lowers it. Excess abdominal fat lowers it. Sleep deprivation lowers it more than most people realize — one week of restricted sleep produces measurable testosterone decline in healthy young men. Resistance training raises it.

Specific foods and supplements claimed to boost testosterone — ashwagandha, fenugreek, zinc in non-deficient men, the various "T-booster" stacks — have either thin evidence, small effect sizes, or both. The single most leveraged thing most men can do for their testosterone is sleep more and lose excess belly fat, in that order.

How much protein do men actually need?

The standard protein recommendation (about 0.8 grams per kilo of body weight) is set to prevent deficiency, not to support thriving. For men over forty, and especially for those trying to maintain muscle and bone, the better target is closer to 1.2 to 1.6 g/kg, spread across the day.

For a 180-pound man, that's roughly 100 to 130 grams of protein a day, in three or four eating occasions, with at least 25 to 30 grams per meal. This is the single most underdone thing I see in middle-aged men's diets — they have plenty of carbs and fat, and a coffee-plus-sandwich-plus-chicken pattern that front-loads almost no protein until dinner.

What I tell male clients in the first session

Five things, roughly:

Eat protein at breakfast. This alone fixes a lot of late-day overeating.

Lift heavy things, two or three times a week. Cardio is great. Resistance training is the single best preserver of metabolic health, bone density, and testosterone with age.

Sleep seven hours, minimum. Yes, even if you've always "gotten by" on six. The version of you that got by on six was twenty-five.

Drink less alcohol than you think is fine. Alcohol is the most under-discussed input to abdominal weight gain, sleep quality, and mood in middle-aged men. "A couple of drinks every night" is doing more than you realize.

Be skeptical of supplements aimed at you. Creatine has strong evidence and is worth taking. Most of the rest of the supplement aisle aimed at men is marketing.

A note for the women reading

If you're the one who's been quietly running the nutrition operation in your household for years, you don't need to take this on too. Send him this post. Send him a few of mine. Let him own his end.

The healthiest households I've worked with are the ones where both partners are paying attention to their own plate, not where one person is managing both.

The takeaway

Men aren't underserved by nutrition advice because they don't care. They're underserved because most of what's produced is built for someone else, and the gap gets filled by people profiting from your insecurity.

Eat enough protein, lift, sleep, drink less, stop buying powders. That's most of it.

Frequently Asked Questions

1. What is the best diet for men over 40?

   
   

A higher-protein, plant-rich Mediterranean-style diet works well for most men over 40: roughly 1.2-1.6 g of protein per kg of body weight, lots of vegetables and legumes, olive oil, fatty fish twice a week, modest amounts of red meat, and limited ultra-processed food and alcohol. Pair it with resistance training and adequate sleep.

2. How much protein should a 180-pound man eat per day?

Roughly 100-130 grams per day if he's reasonably active and over 40, distributed across three or four meals with at least 25-30 grams per meal. Athletes or men trying to build muscle may benefit from the upper end or slightly higher.

3. Does creatine actually work?

   
   

Yes — it's the most-studied sports supplement in existence, with consistent evidence for increased strength, lean muscle mass, and possibly modest cognitive benefits. The standard recommendation is 3-5g of creatine monohydrate daily. Buy a basic, third-party-tested brand; the expensive versions aren't better.

4. What foods boost testosterone naturally?

   
   

There's no specific "testosterone-boosting food." What helps testosterone is broader: adequate calories, sufficient protein, enough zinc and vitamin D (correct deficiencies if present), enough sleep, regular resistance training, and maintaining healthy body fat. Specific foods don't move the needle much; lifestyle does.

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About the Author

Candice Silver, MS, RDN, CDN is a Registered Dietitian Nutritionist based in New York City. She holds a Master of Science in nutrition and is credentialed by the Commission on Dietetic Registration (RDN) and certified by New York State (CDN). Candice works primarily with women navigating real-life nutrition questions — from gut health and hormones to family feeding and chronic conditions — with a practice rooted in evidence-based care and cultural respect.

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Send me a message @ info@candicesilver.com

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