After 65, you need fewer calories but just as many nutrients, and often more protein. The 2025 to 2030 Dietary Guidelines for Americans, released in January 2026, say older adults may benefit from 1.2 to 1.6 grams of protein per kilogram of body weight a day, well above the old 0.8 standard (Oklahoma State University summary). They also stress whole, minimally processed foods, fiber and water, and keep limits on added sugar and saturated fat (each under 10% of calories) and sodium (under 2,300 mg).
Eating well is one of the strongest tools you have to stay strong, independent and sharp. But needs change with age, and much nutrition advice is written for younger people. This guide covers what changes, the nutrients that matter most, the best eating patterns and a simple daily plan.
How needs change after 65
- Fewer calories. Most older adults need about 1,600 to 2,400 a day, depending on size, sex and activity.
- More protein per meal to fight muscle loss.
- Less stomach acid, which makes vitamin B12 harder to absorb from food.
- Weaker thirst signal, so dehydration is common.
- Changes in taste and smell, which can lower appetite.
- More medicines, some of which affect nutrients (for example, metformin and acid reducers can lower B12).
Fewer calories plus higher needs means every bite should count.
The key nutrients and how much you need
| Nutrient | Daily goal for older adults | Good food sources |
|---|---|---|
| Protein | 1.2 to 1.6 g per kg body weight (Dietary Guidelines 2025 to 2030) | Eggs, fish, chicken, beans, Greek yogurt, tofu |
| Calcium | 1,200 mg (women 51+, men 71+); 1,000 mg (men 51 to 70) | Milk, yogurt, cheese, fortified plant milk, canned salmon |
| Vitamin D | 600 IU (51 to 70); 800 IU (71+) | Fatty fish, fortified milk, eggs |
| Vitamin B12 | 2.4 mcg | Fortified cereal, fish, meat, dairy, supplements |
| Fiber | About 21 g (women 51+), 30 g (men 51+) | Beans, oats, vegetables, fruit, whole grains |
| Potassium | 2,600 mg (women), 3,400 mg (men) | Bananas, potatoes, beans, prunes, yogurt |
| Water | About 6 to 8 cups of fluids, more in heat | Water, milk, soup, fruit |
Sources: NIH Office of Dietary Supplements fact sheets for calcium, vitamin D and vitamin B12.
Protein: the nutrient most seniors miss
For a 150-pound (68 kg) person, 1.2 to 1.6 g/kg is about 82 to 109 grams a day. The easiest way to get there is 25 to 30 grams at each meal. For example:
- 3 eggs plus a glass of milk: about 26 grams
- 1 cup Greek yogurt with nuts: about 25 grams
- 4 ounces of chicken or fish: about 28 to 30 grams
- 1 cup of beans plus 1 ounce of cheese: about 22 grams
People with kidney disease should ask their doctor before eating more protein. See our full guide on protein needs for seniors.
Vitamin B12
NIH notes that many older adults absorb B12 poorly from food. Fortified foods and supplements are absorbed better. Low B12 can cause tiredness, numb feet, balance trouble and memory problems. Ask your doctor for a blood test, especially if you take metformin or an acid reducer.
Calcium and vitamin D
These protect bones. Get most calcium from food. If you take a supplement, take 500 mg or less at a time for best absorption. Read more in our vitamin D guide.
The best eating patterns for older adults
| Diet | What it is | Best known for |
|---|---|---|
| Mediterranean | Vegetables, fruit, beans, whole grains, fish, olive oil, nuts | Heart health, longevity |
| DASH | Fruit, vegetables, low-fat dairy, less salt | Lowering blood pressure |
| MIND | Mix of Mediterranean and DASH, with leafy greens and berries | Brain health research |
All three share the same core: plants, healthy fats, lean protein and little processed food. You do not need to follow one perfectly. Pick the one that fits your tastes and health goals. For inflammation, see our anti-inflammatory diet guide.
Best foods for seniors over 65
- Eggs: cheap, soft and full of protein
- Greek yogurt: protein, calcium and gut-friendly bacteria
- Fatty fish (salmon, sardines): omega-3s and vitamin D
- Beans and lentils: protein, fiber and potassium
- Leafy greens: vitamin K, folate and calcium
- Berries: fiber and plant compounds linked to brain health
- Nuts and seeds: healthy fats and magnesium
- Oats: fiber that helps cholesterol and bowels
- Prunes: bones and regularity (see our prunes guide)
- Water: the drink the new guidelines put first
A simple one-day meal plan
| Meal | What to eat | Protein |
|---|---|---|
| Breakfast | 2 eggs scrambled with spinach, 1 slice whole-grain toast, 1 cup milk | About 20 g |
| Snack | Greek yogurt with berries | About 15 g |
| Lunch | Lentil soup with a small turkey sandwich | About 25 g |
| Snack | A handful of almonds and a pear | About 6 g |
| Dinner | Baked salmon, sweet potato, green beans with olive oil | About 30 g |
| Total | About 96 g |
Adjust portions to your appetite and doctor’s advice.
Supplements: which ones have support?
Food comes first. But some older adults benefit from:
- Vitamin B12, if levels are low or you take metformin or acid reducers
- Vitamin D, if your level is low or you get little sun
- Calcium, only if you cannot get enough from food
- Magnesium, if your diet is low; see our magnesium guide
Many other supplements have weak evidence. Show every bottle to your pharmacist, since some interact with medicines.
When appetite is low
- Eat 5 or 6 small meals instead of 3 large ones
- Add protein to what you already eat: milk in soup, nut butter on toast
- Eat with others when you can
- Ask your doctor about medicines that dull appetite
- Ask about Meals on Wheels or senior meal programs
What Medicare covers
Medicare Part B covers medical nutrition therapy with a registered dietitian if you have diabetes or kidney disease, or had a kidney transplant in the last 3 years (Medicare.gov). It also covers obesity counseling if your BMI is 30 or more. You pay nothing for these when your provider accepts assignment.
Common questions
How much protein does a 70-year-old need?
The new Dietary Guidelines suggest 1.2 to 1.6 grams per kilogram a day for older adults. For 150 pounds, that is about 82 to 109 grams.
What vitamins do seniors need most?
Vitamin D, B12 and calcium are the most common gaps. A blood test can show if you need a supplement.
What is the best diet for seniors?
Mediterranean, DASH and MIND diets all have strong research behind them. They share a focus on plants, fish and healthy fats.
Should seniors take a multivitamin?
Some may benefit. Ask your doctor, and choose one made for adults 50 and older.
How much water should older adults drink?
About 6 to 8 cups of fluid a day for most people, more in hot weather. Ask your doctor if you have heart or kidney problems.
Does Medicare pay for a dietitian?
Yes, for people with diabetes or kidney disease, through medical nutrition therapy.
Written by Khasim Basha Shaik. I research senior health for readers and summarize official sources. I’m not a doctor, dietitian or licensed health professional. Talk with your doctor before changing your diet. Last reviewed October 14, 2026.
