Muscle mass drops roughly 3–8% per decade starting in your 30s, and that rate accelerates after 60. The good news: strength training, higher protein intake, and a few targeted nutrients can slow or even reverse much of that loss. The strategy doesn’t require hours in the gym, but it does require consistency and some adjustments that account for how your body handles food and exercise differently than it did at 40.
Why Muscle Loss Speeds Up After 60
The core problem is something researchers call anabolic resistance. In younger adults, eating a protein-rich meal sends a strong signal to muscles to build new tissue. In older adults, that same signal is blunted. The cellular machinery responsible for triggering muscle growth responds more sluggishly to both food and exercise. This doesn’t mean your muscles can’t grow. It means they need a louder signal: more protein per meal, more intentional training, and enough of the right nutrients to push past that higher threshold.
Anabolic resistance also means that simply staying active isn’t enough. Walking, gardening, and swimming are great for cardiovascular health, but they don’t produce the mechanical stress your muscles need to maintain size and strength. Without resistance training specifically, even active older adults lose muscle steadily.
How to Structure Strength Training
The National Strength and Conditioning Association recommends training each major muscle group 2–3 times per week on nonconsecutive days. That could look like three full-body sessions or an upper/lower split across four days. Each session should include 1–2 compound exercises per muscle group (think squats, rows, presses, and deadlift variations) for 2–3 sets of 8–12 repetitions.
If you’re new to lifting or returning after a long break, start with 1 set of 10–15 repetitions at a lighter weight. The goal in the first few weeks is learning movement patterns and building connective tissue tolerance, not chasing heavy loads. Over several weeks, gradually increase to 2–3 sets and heavier weights that challenge you in the 6–12 rep range.
Intensity matters more than volume. You should be working hard enough that the last 2–3 reps of each set feel genuinely difficult. If you can breeze through 12 reps, the weight is too light to trigger meaningful adaptation.
Add Power Work
Traditional strength training builds muscle, but power training, where you move a moderate weight as fast as you can on the lifting phase, has a unique advantage for older adults. Research shows power training improves physical performance and reduces fall risk more effectively than slow, controlled lifting alone. Practically, this means including exercises like medicine ball throws, fast-tempo leg presses, or explosive bodyweight movements like standing up from a chair as quickly as possible. Use lighter loads for these (roughly 40–60% of what you could lift once) and focus on speed.
How Much Protein You Actually Need
The standard dietary recommendation for protein is 0.8 grams per kilogram of body weight per day, a number set for all adults over 18. Experts in aging and muscle health consider this inadequate for people over 60 and recommend 1.2 to 2.0 grams per kilogram per day. For a 175-pound (80 kg) person, that translates to roughly 96–160 grams of protein daily, a meaningful jump from the 64 grams the baseline recommendation would suggest.
The per-meal amount matters too. Research shows that older adults need about 35 grams of high-quality protein per meal to get a near-maximal muscle-building response. Spreading your intake across three meals with at least 30–35 grams each is a practical target. Interestingly, a randomized trial in healthy older adults found no difference in muscle protein synthesis between evenly distributing protein across meals versus loading most of it into dinner, as long as total daily intake was sufficient. So don’t stress about perfect distribution. Focus on hitting your daily total and making sure no meal is protein-free.
The Leucine Threshold
Not all protein is equal when it comes to triggering muscle growth. The amino acid leucine acts as the key that turns on your muscle-building machinery, and older adults need more of it per meal than younger people. A study from the American Physiological Society found that older adults showed no increase in muscle protein synthesis when given a small amino acid dose containing 1.7 grams of leucine, but did respond when the leucine content was bumped to about 2.8 grams. The researchers concluded that roughly 3 grams of leucine per meal is needed to reliably activate muscle protein synthesis in older adults.
You don’t need to count leucine grams obsessively. Hitting that 30–35 gram protein target per meal with high-quality sources like eggs, dairy, poultry, fish, or soy will generally get you there. Whey protein is particularly leucine-dense, which is one reason it’s popular as a supplement. If you eat mostly plant-based proteins, you may need larger portions or combinations to reach the threshold, since most plant proteins contain less leucine per gram.
Vitamin D and Muscle Function
Vitamin D deficiency is strikingly common in older adults, with prevalence estimates ranging from 17% to 87% depending on the population studied. Deficiency is typically defined as blood levels below 20 ng/mL, and it directly affects muscle. Low vitamin D is linked to reduced grip strength, slower walking speed, and higher fall risk.
Older adults should aim for at least 800–1,000 IU of vitamin D daily through supplementation. Randomized controlled trials have shown that fortified foods providing 1,000 IU of vitamin D improved grip strength and walking speed in seniors with muscle loss. Vitamin D supplementation also reduces the risk and frequency of falls. Getting your blood level checked is the most reliable way to know where you stand, since factors like skin tone, sun exposure, body fat, and gut absorption all influence how much you actually need.
Omega-3 Fatty Acids Boost Protein’s Effect
Fish oil doesn’t build muscle on its own, but it appears to amplify your body’s response to protein. A randomized controlled trial in older adults found that eight weeks of omega-3 supplementation more than tripled the increase in muscle protein synthesis that occurred after eating. The effect wasn’t on baseline muscle metabolism (which stayed the same) but specifically on how well muscles responded to the combination of amino acids and insulin after a meal. In other words, omega-3s may help counteract anabolic resistance directly.
Fatty fish like salmon, mackerel, and sardines are the most efficient dietary sources. If you don’t eat fish regularly, a fish oil supplement providing combined EPA and DHA is a reasonable option.
Putting It All Together
The practical routine for maintaining muscle after 60 comes down to a handful of non-negotiable habits working together:
- Lift weights 2–3 days per week, using compound movements for 2–3 sets of 8–12 reps at a challenging intensity. Include some faster, power-focused exercises with lighter loads.
- Eat 1.2–2.0 grams of protein per kilogram of body weight daily, aiming for at least 30–35 grams per meal from high-quality sources rich in leucine.
- Supplement with 800–1,000 IU of vitamin D daily, especially if you have limited sun exposure or known deficiency.
- Include omega-3 fatty acids through fish or supplementation to enhance your muscle-building response to meals.
None of these strategies work well in isolation. Protein without resistance training won’t build muscle. Lifting without adequate protein gives your body insufficient raw material to repair and grow. Vitamin D and omega-3s support the process but can’t replace the fundamentals. The combination, done consistently, is what shifts the trajectory from steady decline to genuine maintenance or even improvement well into your 60s, 70s, and beyond.