Best protein powders for women over 40
Falling estrogen makes muscle harder to build and easier to lose, which is why protein targets go up rather than down in your 40s. Most women we work with are eating 50 to 60g a day and need closer to 90 to 110g. A powder is not magic, it is just the easiest way to close a 30g gap without cooking twice.
Quick answer
20 to 30g of protein per scoop with a complete amino acid profile; whey isolate and soy or pea-rice blends both qualify. Options below start around $39.95, sold directly by Shopify merchants.
Reviewed by Rebecca R., MSc, RD — Registered Dietitian, perimenopause nutrition lead at Lila
Last reviewed July 20, 2026
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What to look for
- 20 to 30g of protein per scoop with a complete amino acid profile; whey isolate and soy or pea-rice blends both qualify.
- Low added sugar and no proprietary 'blend' hiding the actual protein content.
- Collagen is good for skin and connective tissue but is not a complete protein, so treat it as an extra rather than your main source.
Food first where you can: eggs, Greek yoghurt, fish, tofu and legumes all count towards the same target. Powder fills the gap on busy days.
Protein FAQs
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