A 67-year-old woman needs more protein than the standard government recommendation suggests. The official Recommended Dietary Allowance (RDA) is 0.8 grams of protein per kilogram of body weight per day, which works out to about 54 grams for a 150-pound woman. But a growing body of evidence shows that number is too low for adults over 65, and most experts now recommend 1.0 to 1.2 grams per kilogram, or roughly 68 to 82 grams per day at that same weight.
Why the Standard RDA Falls Short After 65
The RDA of 0.8 grams per kilogram was set for all adults aged 19 and older. It wasn’t designed with aging muscles in mind. After about age 50, your body becomes less efficient at turning dietary protein into new muscle tissue. Researchers call this “anabolic resistance,” and it means older adults need a higher dose of protein to get the same muscle-building response a younger person gets from a smaller amount.
A 2025 study in Frontiers in Nutrition tested this directly: 126 women aged 60 to 75 with muscle loss were split into two groups, one eating 0.8 g/kg per day and the other eating 1.2 g/kg per day. After 12 weeks, the higher-protein group showed significant improvements in muscle mass, muscle strength, and reductions in body fat. The standard RDA group did not see the same gains. The researchers concluded that 0.8 g/kg is insufficient for preventing sarcopenia (the gradual loss of muscle that accelerates with age) and that at least 1.2 g/kg per day should be the target for older women.
How to Calculate Your Personal Target
The math is straightforward. Divide your weight in pounds by 2.2 to get your weight in kilograms, then multiply by the recommended range of 1.0 to 1.2.
- 130-pound woman: 59 kg × 1.0–1.2 = 59 to 71 grams per day
- 150-pound woman: 68 kg × 1.0–1.2 = 68 to 82 grams per day
- 170-pound woman: 77 kg × 1.0–1.2 = 77 to 93 grams per day
The international PROT-AGE study group, a panel of geriatric nutrition researchers, recommends a slightly broader range of 1.0 to 1.5 g/kg per day for people over 65, with or without existing health conditions. If you’re recovering from surgery, illness, or a hospital stay, your needs move toward the higher end of that range.
What Counts as a Good Protein Meal
Hitting your daily target matters, but so does how you spread it across the day. Older adults benefit from eating a meaningful amount of protein at each meal rather than loading it all into dinner, which is the pattern most people fall into. Aim for roughly 25 to 30 grams per meal across three meals.
For context, here’s what 25 to 30 grams of protein looks like in real food: a palm-sized piece of chicken breast (about 4 ounces), a cup of Greek yogurt, three eggs with a side of cottage cheese, or a cup of lentils paired with a piece of whole-grain toast with nut butter. Mixing animal and plant sources works well, as long as the total adds up.
One detail that matters more as you age: leucine, an amino acid found in high concentrations in eggs, dairy, chicken, fish, and soybeans. Research published in the American Journal of Physiology found that older adults need about 3 grams of leucine per meal to trigger muscle-building signals effectively. Below that threshold, muscle protein synthesis barely increases. A serving of Greek yogurt or a chicken breast typically delivers enough, but a small salad with a few croutons does not.
Why Strength Training Changes the Equation
Protein alone helps preserve muscle, but protein combined with resistance exercise produces dramatically better results. Harvard Health reports that the combination of adequate protein intake and regular heavy resistance training leads to the most improvement in both muscle mass and strength in healthy older adults. Neither strategy works as well on its own.
If you’re doing regular strength training (even two to three sessions a week with resistance bands, dumbbells, or bodyweight exercises), your protein needs shift toward the upper end of the range, around 1.2 g/kg or slightly above. You don’t need to reach extreme levels. Consuming more than about 0.9 grams per pound of body weight (roughly 136 grams per day for a 150-pound person) offers no additional benefit and can be harmful over time.
When Higher Protein Isn’t Appropriate
The one major exception to the “more is better” guidance is kidney disease. If you have chronic kidney disease and are not on dialysis, a lower-protein diet is typically recommended because your kidneys can’t clear protein waste efficiently. Excess protein waste builds up in the blood, causing nausea, loss of appetite, weakness, and taste changes. The right amount depends on your kidney function, body size, and nutritional status, so this is one area where a personalized plan from a kidney dietitian is genuinely important.
For women with healthy kidneys, there’s no evidence that intakes in the 1.0 to 1.2 g/kg range pose any risk. This is a moderate increase over the RDA, not a high-protein extreme.
What This Looks Like in a Day
For a 150-pound woman aiming for about 75 grams of protein per day, a realistic day might look like this: two eggs and a cup of milk at breakfast (about 20 grams), a chicken salad with half a cup of beans at lunch (about 30 grams), and a piece of salmon with quinoa at dinner (about 25 grams). A mid-afternoon snack of a handful of almonds or a cheese stick adds a few more grams of buffer.
The shift doesn’t require protein shakes or supplements for most people, though a whey or plant-based protein powder mixed into a smoothie can be a practical option on days when cooking feels like too much effort. The goal is consistency across the week, not perfection at every meal.