How much protein do men over 30 really need?

Protein is the one macro most men under-eat and overthink. Here is what the evidence actually says, without the supplement-industry noise.

The number that matters

For building and keeping muscle, muscle protein synthesis rises with protein intake up to around 1.6 grams per kilogram of bodyweight per day, with some extra benefit up to roughly 2.2 g/kg for people training hard. For an 85 kg man, that is about 135 to 190 grams a day. Past that point, more protein does not build more muscle. It is just expensive.

Spread it across the day

How you distribute protein matters more than people think. Your muscles respond best to about 0.4 g/kg per meal, which is roughly 30 to 40 grams of protein in each of three or four meals, rather than a tiny breakfast and a huge dinner. In a controlled study, an even spread produced about 25 percent more 24-hour muscle protein synthesis than the same total skewed toward one meal. In practice: get real protein into breakfast, not just dinner.

Why it matters more after 30

As you age, your muscles become a little less responsive to protein, a change called anabolic resistance. That is one reason older adults often need slightly more protein, not less, to hold onto muscle. Combined with the natural muscle loss of ageing, quietly under-eating protein works against you.

What this looks like on a plate

You do not need shakes or special products. A palm-sized portion of meat, fish, eggs, dairy, tofu or legumes at each meal gets most men close. Some examples of 30 to 40 grams: three or four eggs with Greek yoghurt, a chicken breast, a tin of tuna with cottage cheese, or a large bowl of Greek yoghurt and seeds. A shake is a convenient backup when you are travelling or rushed, not a requirement.

The travel and restaurant problem

Eating out and constant travel is where protein targets fall apart. The fix is a default order: lead with a clear protein such as grilled fish, chicken, steak or eggs, add vegetables, and treat the rest as flexible. One reliable habit beats a perfect plan you cannot keep.

This article is general lifestyle and nutrition information, not medical advice. If you have a kidney condition or another medical issue, speak to a doctor before changing your protein intake.