How much protein does a woman over 50 need to stop losing muscle?

By Zoe · Came up with MenoLisa

Updated September 14, 2026 · 5 min read

If you're over 50 and you've noticed you feel softer, weaker or more tired than you used to, protein is one of the first places I'd look. Not because it's trendy, but because it's the one thing your muscles can't rebuild without, and menopause makes muscle harder to keep.

Let me give you the plain-English number first, and then explain why.

The number: 25 to 30 grams, at every meal

Here's what I'd aim for: about 25 to 30 grams of protein at breakfast, at lunch and at dinner. Added up, that's roughly 75 to 90 grams a day for most women. It's the same number we built into the MenoLisa plan, ticked off meal by meal.

You may have seen a smaller number on food labels or in older guides. That figure was set as a minimum, to make sure people don't go short. Researchers who study aging suggest that people over 50 need more than that to hold on to their muscle.

One caution: if you have kidney disease, check with your doctor before eating more protein.

Why you need more now than you did at 30

Two things change. First, estrogen helped protect your muscle, so as it drops you lose muscle faster. Second, as we get older our muscles respond less strongly to the protein we eat. You need a bigger helping at a meal to get the same rebuilding a younger body got from less.

So the amount that kept you strong at 30 isn't enough to keep you strong at 55.

Why every meal, not just dinner

This is the part most women get wrong, and it's not your fault. A typical day looks like toast or cereal for breakfast, a light salad for lunch, and most of the day's protein at dinner.

Your body can only use so much protein for muscle at one sitting. A big dinner doesn't make up for a breakfast with almost none. Three moderate servings spread through the day do what one big one can't.

If you only change one thing, make it breakfast.

What 25 grams looks like

You don't need to weigh anything. These are rough numbers, and rough is fine:

• A palm-sized piece of chicken, turkey or fish: about 25 grams
• A can of tuna: about 20 to 25 grams
• Two eggs: about 12 grams
• Half a cup of cottage cheese: about 12 grams
• A single-serve cup of plain Greek yogurt: about 15 grams
• A cup of cooked lentils or beans: about 15 to 18 grams
• A scoop of protein powder: usually 20 to 25 grams (check the label)

A few breakfasts that get you there: two eggs scrambled with half a cup of cottage cheese. Greek yogurt with a spoon of nut butter and berries, plus a boiled egg. Or a protein shake with a banana on a rushed morning.

Protein also helps with hunger

There's a bonus. Protein keeps you full longer than the same amount of bread or pasta. A breakfast with real protein in it often means no mid-morning cookie. For a lot of women, that alone makes eating well feel easier, without counting anything.

Protein can't do it alone

Protein is the building material. It doesn't build anything by itself. Your muscles need a reason to use it, and that reason is strength work: squats, lunges, push-ups against the wall, two or three times a week.

Protein plus strength work is what keeps muscle. Either one on its own does much less. If you've been eating well and still feel yourself getting weaker, the missing piece is usually the second half.

What's really going on

What sets it off: estrogen drops. It's rising and falling in perimenopause, and low for good after your last period. On its own it doesn't add a pound. It sets off three changes:

1. 1

   You're hungrier, and you burn less. Your brain uses estrogen to help set appetite and metabolism. With less of it, hunger goes up and your body burns less at rest.

2. 2

   Weight goes to your belly. Estrogen used to send fat to your hips and thighs. With less of it, new fat settles around your belly instead.

3. 3

   You're losing muscle. Estrogen helped protect it. From your 40s on you lose a little every year unless you use it, and muscle burns calories even while you sit.

You can't turn estrogen back up on your own. But all three of these respond to what you do every day. It's also why dieting works against you now: cutting calories alone costs you muscle too, so you burn even less. Short strength workouts help you keep and rebuild that muscle, so that's where a MenoLisa plan starts.

Take the free 2-minute quiz to see how this plays out in your body, and get your 8-week plan built around it.