Key takeaways
- Adults gradually lose muscle and strength with age (sarcopenia), especially without strength training.
- Older muscles respond a little less to protein, so many experts suggest more than the bare minimum.
- The RDA (0.8 g/kg) prevents deficiency; many experts suggest about 1.0–1.6 g/kg for older adults.
- Spread protein across meals: about 25–40 g at each.
- Protein works best paired with strength training.
As we get older, our bodies don’t work quite the way they did in our 20s or 30s. It may take longer to bounce back, and losing a few pounds can feel harder. One of the biggest and most overlooked changes is gradual muscle loss. One of the best tools to fight it is simple: protein, paired with strength training.
What happens to muscle as we age
Starting around midlife, adults gradually lose muscle mass and strength, a process called sarcopenia. The loss tends to speed up after about age 60, especially in people who aren’t active. Less muscle means less strength and stability and a slightly lower metabolism, so it becomes easier to gain fat even if your eating hasn’t changed.
There’s a second change too: older muscles respond a little less to protein than younger ones (sometimes called “anabolic resistance”). That’s why many researchers suggest adults over 40 aim for more protein than the minimum, not less.
Why protein matters
How much protein do you need?
| Guideline | Amount | For a 170 lb (77 kg) adult |
|---|---|---|
| RDA (minimum to avoid deficiency) | 0.8 g per kg | About 62 g a day |
| Common expert range for older adults | 1.0–1.6 g per kg | About 77–123 g a day |
| Practical target when losing fat (our coaches’ rule of thumb) | 0.7–1 g per lb of goal weight | About 105–150 g for a 150 lb goal |
Split across three meals and a snack, that’s about 25–40 g each time.
Safety note: If you have kidney disease or another medical condition, check with your doctor before increasing your protein.
What we see with members over 40
One of the most common patterns we see at CT Workout is that people eat far less protein than they think. A typical day might be coffee and toast for breakfast, a salad at lunch and a bigger dinner. Added up, it’s often less than half of what they need.
Easy ways to get more protein
| Food | Approx. protein |
|---|---|
| Greek yogurt (1 cup) | 20–23 g |
| Cottage cheese (1 cup) | 24–28 g |
| Chicken breast (4 oz cooked) | 30–35 g |
| Canned tuna (1 can, drained) | 25–30 g |
| Eggs (2 large) | 12 g |
| Lean ground beef or turkey (4 oz cooked) | 25–30 g |
| Lentils (1 cup cooked) | 17–18 g |
| Protein shake (1 scoop) | 20–25 g |
- Build each meal around protein: eggs or Greek yogurt at breakfast, chicken, tuna or turkey at lunch, fish or lean meat at dinner.
- Keep high-protein snacks around: cottage cheese, jerky, a shake or a protein bar.
- Upgrade what you already eat: Greek yogurt instead of regular, protein powder in oatmeal.
- Vegetarian? Combine beans, lentils, tofu, tempeh, edamame, eggs and dairy.
Protein works best with strength training
Protein gives your body the building blocks, but strength training is the signal that tells your muscles to use them. The combination keeps you strong, lean and independent as you age. And it’s never too late: whether you’re 40, 50, 60 or older, your body responds to the right fuel and the right training.
“I walked in as someone that could not get up off the floor without help… at 62… Along with the strength training has come improved stamina, balance, and much less back pain.”
Sue P., CT Workout memberStrength and nutrition coaching in Newington, CT
At CT Workout, every member gets protein and nutrition guidance alongside coached strength training. We work with adults from Newington, Wethersfield, West Hartford, Rocky Hill, Berlin and New Britain.
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Protein after 40 FAQ
How much protein do I need after 40?
Many experts suggest about 1.0–1.6 g per kg of body weight for older adults. When losing fat, many coaches use about 0.7–1 g per pound of goal weight.
Can you eat too much protein?
For healthy adults, higher protein intakes are generally safe. If you have kidney disease, follow your doctor’s guidance.
What’s the easiest way to eat more protein?
Include a palm-sized portion of protein at every meal and keep a high-protein snack handy.
Prefer to train with a group? See our group fitness & boot camp classes in Newington: coach-led strength, core and HIIT-style conditioning for every fitness level.
Questions about this article?
Our coaches in Newington are happy to help. Call or text (860) 452-3511.
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