A 62-year-old woman generally needs about 1.0 to 1.2 grams of protein per kilogram of body weight each day to maintain muscle, strength, and overall function. That works out to roughly 68 to 82 grams daily for a woman weighing about 150 pounds (68 kg). This is substantially higher than the long-standing Recommended Dietary Allowance of 0.8 g/kg/day, which was set to prevent deficiency in the general population but increasingly looks inadequate for adults in their sixties and beyond. The gap between the old guideline and what the evidence now supports is worth understanding, because the consequences of falling short show up in ways many people don’t connect to protein at all.
Why the Old Guideline Falls Short
The RDA of 0.8 g/kg/day was designed as a minimum to prevent nitrogen imbalance in healthy adults. It was never intended as an optimal intake for people over 60, and the research community has moved well past it. The core issue is something called anabolic resistance: as you age, your muscles become less responsive to the protein you eat. A younger person’s muscles respond robustly to even a modest dose of amino acids, ramping up the process of building new muscle tissue. An older person eating the same amount gets a blunted response.1PubMed Central. Age-Related Anabolic Resistance: Nutritional and Exercise Strategies, and Potential Relevance to Life-Long Exercisers The good news is that this blunted response can be overcome by eating more protein at each sitting.2PubMed Central. Protein Consumption and the Elderly: What Is the Optimal Level of Intake?
This isn’t just a theoretical concern. The impaired response of muscle protein synthesis to dietary amino acids is recognized as a key driver of sarcopenia, the progressive loss of muscle mass and function that accelerates after about age 60.3PubMed Central. Mechanisms Linking the Gut-Muscle Axis With Muscle Protein Metabolism and Anabolic Resistance: Implications for Older Adults at Risk of Sarcopenia In practical terms, if a 62-year-old woman eats the same amount of protein she ate at 35, her body is doing less with it. Bumping intake to 1.0–1.2 g/kg/day, and in some cases higher, helps close that gap.
What Happens When Protein Intake Is Too Low
Inadequate protein doesn’t just mean losing some muscle definition. A large European study found that low protein intake was associated with significantly higher odds of functional impairments in older women, including difficulty walking short distances, stooping and kneeling, reaching overhead, and even basic activities like shopping for groceries. Women aged 50 to 65 with low protein intake had more than double the odds of difficulty with toileting compared to peers eating more protein.4PubMed Central. Low Protein Intake Is Associated with the Risk of Functional Impairment in Older Adults in an Age- and Gender-Specific Manner: A SHARE-Based Study These are the kinds of functional losses that erode independence.
The link between protein and frailty is also well established. A systematic review and meta-analysis of observational studies found that higher protein consumption was associated with a significantly lower risk of frailty in older adults.5PubMed Central. Protein Intake and Frailty in Older Adults: A Systematic Review and Meta-Analysis of Observational Studies And in pooled analyses comparing older adults with and without sarcopenia, those with sarcopenia had consumed significantly less protein over time.6PubMed Central. Protein Intake and Sarcopenia in Older Adults: A Systematic Review and Meta-Analysis Data from the Nurses’ Health Study, which followed tens of thousands of women, showed that women with higher plant protein intake had a progressively lower risk of developing frailty, with those in the top fifth of consumption seeing meaningful protection.7PubMed Central. Protein intake and risk of frailty among older women in the Nurses’ Health Study
How Exercise Changes the Number
Protein and resistance training work together in a way that neither can fully replicate alone. A meta-analysis of trials in older adults found that combining protein supplementation with resistance training produced measurable gains in fat-free mass and grip strength that exceeded what training alone achieved.8The Journal of nutrition, health and aging. Effect of Protein Supplementation Combined With Resistance Training on Muscle Mass, Strength and Function in the Elderly: A Systematic Review and Meta-Analysis And a study of pre-frail and frail older women found that 12 weeks of resistance training combined with an optimized protein intake of 1.2 g/kg/day increased their rate of muscle protein building by about 47%, with meaningful gains in muscle fiber size and total lean mass.9PubMed Central. Resistance training, but not leucine, increased basal muscle protein synthesis and reversed frailty in older women consuming optimized protein intake
If you’re doing any kind of strength training, your protein needs may tick above the 1.0–1.2 g/kg range. A study of healthy older women doing resistance training found a positive relationship between daily protein intake and skeletal muscle mass gains, with a breakpoint at roughly 1.1 g/kg/day. Below that threshold, the training was less effective at building muscle.10PubMed. Is There a Minimum Protein Intake Associated With Resistance Training to Optimize Skeletal Muscle Mass Gains in Untrained Older Women? The takeaway isn’t that you need extreme amounts of protein, but that if you’re investing the effort of lifting weights, you want to eat enough protein to actually reap the benefits.
Spreading It Across the Day
How you distribute your protein matters as much as the total. Research on adults over 50 found that about 30 grams of protein in a single meal increased muscle protein synthesis by roughly 50%. But tripling that dose to 90 grams in one sitting produced no further benefit.11Caring for the Ages. How Much Protein Does a 62-Year-Old Woman Need? – Section: Does Timing and Daily Distribution Matter? Your body can only use so much at once for muscle building, and the surplus doesn’t get stored for later muscle repair the way your body stores fat for energy.
This means front-loading all your protein at dinner, which is common in Western eating patterns, leaves you short during the earlier part of the day when your muscles could be using it. A more effective strategy is to aim for roughly 25 to 30 grams at each of three meals. For a woman targeting 70 to 80 grams daily, that’s achievable without radical changes. A breakfast with Greek yogurt and eggs, a lunch with chicken or beans, and a dinner with fish or tofu can get you there without supplements.
Animal Versus Plant Protein
This is where the evidence gets a little more complicated than either camp tends to admit. Animal proteins generally trigger a stronger muscle-building response per gram than plant proteins, largely because they’re more digestible and have higher concentrations of the amino acid leucine, which acts as a trigger for muscle protein synthesis.12The Journal of Nutrition. The Skeletal Muscle Anabolic Response to Plant- versus Animal-Based Protein Consumption Leucine is especially relevant for older adults because it can help override the anabolic resistance described earlier.13PubMed Central. Efficacy and Safety of Leucine Supplementation in the Elderly
But that doesn’t mean plant protein is ineffective. A systematic review and meta-analysis of randomized controlled trials found that in older adults specifically, there was no significant difference in muscle mass between those consuming animal versus plant protein. Soy protein, in particular, was equivalent to animal protein for maintaining or improving muscle mass across age groups.14PubMed Central. Effect of Plant Versus Animal Protein on Muscle Mass, Strength, Physical Performance, and Sarcopenia: A Systematic Review and Meta-analysis of Randomized Controlled Trials And the lower anabolic capacity of plant proteins can be compensated for by eating more total protein or by combining different plant sources to get a more complete amino acid profile.15Journal of the Academy of Nutrition and Dietetics. Dietary Protein Intake Is Associated with Skeletal Muscle Mass in Community-Dwelling Middle-Aged and Older Chinese Adults
One complication worth knowing about: aging changes your digestive system in ways that reduce how efficiently you absorb protein. In laboratory models simulating the older gut, protein digestibility dropped compared to conditions mimicking a younger adult’s digestion, with the size of the reduction depending on the protein source. Whey and rice proteins showed roughly a 20% reduction in digestibility under elderly conditions, while pea protein dropped about 10%.16PubMed. Comparison of protein in vitro digestibility under adult and elderly conditions: The case study of wheat, pea, rice, and whey proteins Human studies confirm the pattern: aging leads to decreased amino acid appearance in the bloodstream after a meal.17PubMed. Impact of aging on the digestive system related to protein digestion in vivo This reduced digestibility is another reason the total intake recommendation is higher for older adults. You need more going in because less is getting through.
Protein and Bone Health After 60
Many women worry about osteoporosis in their sixties, and protein’s role in bone health has been debated for decades. The older concern that high protein leaches calcium from bones has been largely put to rest. An umbrella review for the German Nutrition Society found possible evidence that higher protein intake reduces hip fracture risk, though the overall certainty of evidence for protein’s effect on bone mineral density remained low.18PubMed Central. Protein intake and bone health: an umbrella review of systematic reviews for the evidence-based guideline of the German Nutrition Society A meta-analysis from the National Osteoporosis Foundation found moderate evidence for a small protective effect of higher protein on lumbar spine bone density, but no clear effect on hip or total body bone density.19The American Journal of Clinical Nutrition. Dietary protein and bone health: a systematic review and meta-analysis from the National Osteoporosis Foundation
The Women’s Health Initiative, which tracked about 140,000 women aged 50 to 79, found that those with higher protein intake maintained higher total bone mineral density, and the benefit accumulated over time. However, the increased bone density did not translate into lower rates of hip or spine fractures, though it did appear to reduce forearm fractures.20PubMed Central. Impact of Dietary Protein on Osteoporosis Development – Section: Amount of Protein in the Diet and the Risk of Osteoporosis So protein is probably modestly helpful for bones, but it’s not a substitute for calcium, vitamin D, and weight-bearing exercise.
Protecting Muscle During Weight Loss
If you’re a 62-year-old woman trying to lose weight, protein becomes even more important. The danger with caloric restriction at this age is that you lose muscle along with fat, which is exactly the wrong trade-off for long-term health. A study of postmenopausal overweight women consuming 1.0 g protein/kg/day found that those who combined their diet with resistance training preserved their fat-free mass, while sedentary dieters lost a significant amount of it.21PubMed Central. Resistance training preserves fat-free mass without impacting changes in protein metabolism after weight loss in older women
Adding extra protein on top of the exercise appears to help further, at least in the early stages of weight loss. A controlled study found that protein supplementation during the first 5% of body weight loss roughly halved the loss of lean mass compared to a placebo group. The advantage shrank once people had lost about 10% of their body weight, though there was still a trend toward better muscle preservation with higher protein.22PubMed Central. Effect of protein supplementation during diet-induced weight loss on muscle mass and strength: a randomized controlled study The practical message: if you’re dieting, keep protein high and add resistance training. Losing fat while preserving muscle is the goal, and both levers matter.
Blood Sugar and Metabolic Health
Higher protein intake in the range of 1.0 to 1.5 g/kg/day has been linked to improvements in blood sugar control in older adults, through several pathways: protein increases satiety, lowers the blood sugar spike after meals, raises the thermic effect of food, and helps maintain the muscle mass that acts as a major glucose sink.23PubMed Central. Nutritional Strategies to Combat Type 2 Diabetes in Aging Adults: The Importance of Protein If you’re in your sixties and managing insulin resistance or prediabetes, protein is working for you in ways that go beyond muscle.
A common worry is that more protein might worsen metabolic markers like cholesterol or insulin sensitivity. A randomized controlled trial in older adults with metabolic syndrome found that a short-term increase in protein intake did not worsen insulin resistance, blood sugar responses, or lipid levels compared to a regular-protein diet.24PubMed Central. Short term elevation in dietary protein intake does not worsen insulin resistance or lipids in older adults with metabolic syndrome
The Kidney Question
The most persistent concern about higher protein intake is kidney damage. For people who already have chronic kidney disease, protein restriction is part of standard medical management, and higher intake could accelerate decline. But for healthy older adults with normal kidney function, the evidence does not support the idea that moderate increases in protein are dangerous.25Advances in Nutrition. Controversies Surrounding High-Protein Diet Intake: Satiating Effect and Kidney and Bone Health That said, if you have any doubt about your kidney function, a simple blood test can clarify things before you make dietary changes. The risk is real for people with existing kidney problems, so this isn’t a blanket reassurance.
Calculating Your Own Target
The standard approach is to multiply your body weight in kilograms by 1.0 to 1.2. For a 150-pound woman (68 kg), that gives a range of 68 to 82 grams per day. If you’re doing regular strength training, aiming closer to 1.2 g/kg or slightly above makes sense given the breakpoint data mentioned earlier.
One wrinkle: these calculations assume a roughly healthy body composition. If you’re significantly overweight or obese, calculating protein based on actual body weight can overestimate what you need, since excess fat mass doesn’t require the same protein support that lean tissue does. A study comparing protein calculations based on actual body weight versus fat-free mass found clinically relevant overestimates in most participants with obesity.26PubMed. Calculation of protein requirements; a comparison of calculations based on bodyweight and fat free mass If that applies to you, a dietitian can help estimate an adjusted body weight to use as the basis for your calculation. For someone at a healthy weight, the simple multiplication works well enough.
When Appetite Gets in the Way
Knowing you need 70 to 80 grams of protein a day is one thing. Actually eating it is another, especially as appetite tends to decline with age. This phenomenon, sometimes called the anorexia of aging, is common enough that researchers treat it as a clinical concern in its own right. Older adults frequently fail to eat enough food to meet their basic energy and nutrient needs, and this reduced appetite is recognized as an independent predictor of poor health outcomes in geriatric populations.27PubMed Central. Anorexia of Aging: Risk Factors, Consequences, and Potential Treatments
For a 62-year-old woman who simply doesn’t feel very hungry, hitting protein targets may require some strategy. Prioritizing protein-rich foods at the start of each meal, before filling up on lower-protein items, is a simple approach. Choosing protein-dense options like Greek yogurt, eggs, cottage cheese, canned fish, or edamame means getting more protein per bite. Smoothies with added protein powder can deliver 25 to 30 grams without requiring much appetite. And since protein also happens to be the most satiating macronutrient, eating more of it can paradoxically make the overall eating pattern feel more satisfying even when total food volume is modest.
The Gut Microbiome Connection
An emerging line of research suggests that the gut microbiome may play a role in how well older adults respond to dietary protein. The gut microbiota change with age, are influenced by the amount and type of protein consumed, and appear to be linked to skeletal muscle function.28PubMed Central. Dietary Protein and Muscle in Aging People: The Potential Role of the Gut Microbiome The hypothesis is that individual differences in gut bacteria could partly explain why some older adults respond well to increased protein while others get less benefit. This research is still in early stages, but it may eventually help explain some of the variability that clinicians see in practice and could open the door to personalized dietary recommendations. For now, the practical implication is modest: eating a varied diet that supports gut health, including fiber alongside your protein, is unlikely to hurt and may help your body make better use of what you eat.