A Harvard-Certified Skin Expert Says To ‘Eat Your Collagen’ With These Top Anti-Aging Foods: Bone Broth, More

September 21, 2025 by Lisa Cupido

Pexels / Heber Vazquez

Collagen is often called the building block of youthful skin. This powerful protein is what keeps skin firm, plump, and elastic, helping to ward off fine lines and sagging. The challenge is that collagen production naturally slows down as we age, often starting as early as our twenties, which can leave skin looking less vibrant over time. While creams and serums can help on the surface, one of the most effective ways to support collagen is from the inside out.

Your daily diet can play a big role in giving your skin the boost it needs. By incorporating collagen-supporting foods, you can help your body rebuild and protect this vital protein. According to one Harvard-educated skin expert, there are eight standout foods that can help you glow from the inside out. The best part is they’re easy to add to your meals starting today.

1. Bone Broth

Bone broth is one of the richest natural sources of collagen since it’s made by animal bones and connective tissue. Sipping it provides your body with amino acids like glycine and proline, which are important for collagen production, and can leave skin firmer and more resilient.

2. Fatty Fish

Salmon, tuna, mackerel, and sardines are loaded with omega-3 fatty acids that help reduce inflammation and keep skin supple. The protein in fish provides the building blocks for collagen, while the healthy fats help lock in moisture for a glowing complexion.

3. Eggs

Eggs, particularly the whites, contain proline, an amino acid that’s vital for collagen synthesis. They also deliver biotin and other B vitamins that strengthen skin, hair, and nails, making them a simple yet powerful food for beauty.

4. Citrus Fruits

Oranges, lemons, and grapefruits are packed with vitamin C, one of the most important nutrients for collagen formation. Vitamin C also acts as an antioxidant, protecting collagen from breaking down and helping skin look brighter and more even-toned.

5. Carrots

Carrots are rich in beta-carotene, which converts to vitamin A in the body and supports skin cell turnover. This process helps maintain a smooth, youthful texture while also protecting collagen from breakdown caused by UV damage.

6. Green Tea

Green tea is full of polyphenols and catechins, which are antioxidants that protect collagen from free radical damage. Drinking it regularly can help reduce inflammation, support skin firmness, and keep your complexion looking calm and radiant.

7. Tomatoes

Tomatoes are a top source of lycopene, an antioxidant that helps shield the skin from UV damage, which is a major culprit in collagen loss. Combined with their vitamin C content, tomatoes help preserve skin’s elasticity and youthful bounce.

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