Free tool · Built for women 40+

Protein Calculator for Women Over 40

Get your daily protein target and per-meal split — calibrated to protect muscle and metabolism as perimenopause begins.

Daily protein target

105g

1.50 g/kg of body weight

Per meal (4 meals)26 g
Calories from protein420 kcal

Aim for 25–30 g of protein per meal — the threshold for triggering muscle protein synthesis as estrogen begins to fluctuate.

Why protein matters more in your 40s

Perimenopause typically starts in your 40s. Estrogen begins to swing and then decline — and estrogen is muscle-protective. The earlier you raise protein and start lifting, the more lean mass you carry into menopause.

The 25–30 g per meal rule

Aim for at least 25–30 g of protein at each main meal to reliably trigger muscle protein synthesis. Spreading protein evenly across the day beats one giant dinner.

Easy ways to hit your target

  • Greek yogurt + berries + seeds breakfast: 25–30 g
  • 4 oz chicken or salmon: 28–32 g
  • 2 eggs + 1 scoop whey shake: 30+ g
  • 1 cup cooked lentils + tofu: 25+ g (vegan)

Is it safe?

Yes. The "high protein hurts kidneys" claim doesn't hold up in healthy adults. Intakes up to 2.4 g/kg are well-studied and safe. The exception: pre-existing chronic kidney disease — talk to your doctor.

Your 40s are the best time to bank muscle.

Lila tracks your protein in real meals — not abstract macros — and nudges you when you're falling short.