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Protein Requirements for Women Over 50: A Complete Guide

Jennifer Adams, RD

Jennifer Adams, RD

Mar 5, 20259 min read
Protein Requirements for Women Over 50: A Complete Guide

Protein is arguably the most important macronutrient for women over 50. Yet most women in this age group are significantly under-consuming it—often eating less than half of what their bodies actually need to maintain muscle, support bone health, and keep metabolism running efficiently.

How Much Protein Do You Actually Need?

The outdated RDA of 0.8g per kilogram of body weight was set to prevent deficiency, not to optimize health. Current research strongly suggests that women over 50 need significantly more:

Recommended Protein Intake for Women Over 50

  • Sedentary women: 1.0–1.2g per kg of body weight
  • Active women: 1.2–1.6g per kg of body weight
  • Women doing strength training: 1.6–2.0g per kg of body weight
  • Example: A 68kg (150lb) active woman needs 82–109g of protein daily

Why Protein Needs Increase After 50

  • Anabolic resistance: Muscles become less responsive to protein signals
  • Sarcopenia (muscle loss) accelerates without adequate protein
  • Bone density maintenance requires protein alongside calcium
  • Immune function depends heavily on protein intake
  • Metabolism slows — protein has the highest thermic effect of all macronutrients

Best Protein Sources for Women Over 50

Animal-Based Sources

  • Salmon (25g per 100g) — also rich in omega-3s
  • Chicken breast (31g per 100g) — lean and versatile
  • Greek yogurt (17g per 170g) — great for gut health too
  • Eggs (6g per egg) — complete protein with all essential amino acids
  • Cottage cheese (14g per 100g) — high in casein for overnight muscle repair

Plant-Based Sources

  • Lentils (18g per cooked cup) — also high in fiber and iron
  • Edamame (17g per cup) — complete plant protein
  • Tempeh (31g per 100g) — fermented for better digestibility
  • Hemp seeds (10g per 3 tbsp) — easy to add to smoothies
  • Quinoa (8g per cooked cup) — complete protein grain

How to Distribute Protein Throughout the Day

Research shows that spreading protein evenly across meals (rather than eating most at dinner) maximizes muscle protein synthesis. Aim for 25–35g of protein per meal.

  • Breakfast: Greek yogurt parfait with nuts and seeds (30g)
  • Lunch: Grilled salmon salad with quinoa (35g)
  • Snack: Cottage cheese with berries (15g)
  • Dinner: Chicken stir-fry with edamame (40g)

Should You Use Protein Supplements?

Whole food sources are always preferable, but protein supplements can be a convenient way to meet your daily targets. Whey protein is the gold standard for muscle building, while pea or rice protein are excellent plant-based alternatives. Look for products with minimal additives and at least 20g of protein per serving.

Jennifer Adams, RD

About Jennifer Adams, RD

Registered Dietitian with a focus on women's nutrition during perimenopause and post-menopause. Author of 'Eat Well After 50'.

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