Nutrition for Healthy Aging: A Science-Based Guide

Learn which nutrients and dietary patterns support healthy aging. A science-backed guide to eating well at every stage of life.

Frequently Asked Questions

What is the best diet for healthy aging?
The Mediterranean diet has the strongest evidence for healthy aging. Large studies link it to up to 23% lower all-cause mortality. It emphasizes vegetables, fruits, whole grains, fish, olive oil, and nuts while limiting processed foods and red meat.
What nutrients do you need more of as you age?
Older adults typically need more protein (1.0-1.2 g/kg), vitamin D (800 IU after 70), calcium (1,200 mg), vitamin B12 (2.4 mcg, often from fortified sources), and omega-3 fatty acids. Calorie needs decrease but nutrient needs stay the same or increase.
Can nutrition slow down the aging process?
Research shows that dietary patterns rich in antioxidants, omega-3s, and fiber can reduce oxidative stress and inflammation, two drivers of biological aging. A 2024 epidemiological review found that a healthy diet combined with other lifestyle factors may extend disease-free life by 8 to 10 years.
How much protein do older adults need per day?
Most experts recommend 1.0 to 1.2 grams of protein per kilogram of body weight for adults over 65, rising to 1.2-1.5 g/kg for those with chronic illness or recovering from injury. This is higher than the standard RDA of 0.8 g/kg.
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