The Dr. Gundry Podcast – EP 392.C

Foods That Help Protect Your Skin: Nutrition Tips for Natural Sun Defense
Date: February 27, 2026
Host: Dr. Steven Gundry

Overview

In this episode, Dr. Gundry dives deep into the ways nutrition can serve as your body's internal "sunscreen," exploring how specific foods and nutrients help protect your skin from the harmful effects of sun exposure. He highlights the importance of photoprotective compounds found in food, dispels common sun-related myths, and provides actionable dietary advice for bolstering natural defenses, all with his signature enthusiasm and clarity.

Key Discussion Points & Insights

Eating Your Sunscreen: The Concept

• Dr. Gundry starts with the idea of "eating your sunscreen"—using nutrition to help safeguard your skin from sun damage.
  • "You probably heard me say vitamin D is important. And while this is true, you still need to protect your skin from getting too much sun." (00:00)

1. Beta Carotene

• Role: Maintains skin health, acts as a plant-derived photoprotector, essentially as a “natural sunscreen.”
• Food Sources: Raw carrots, sweet potatoes, leafy greens like kale and spinach.
• Key Insight: Beta carotene is converted into vitamin A and helps protect skin from sun-induced damage.
  • “Beta carotene is a nutrient that can aid in the maintenance of your skin health...it acts as a natural sunscreen for your skin.” (00:30)

2. Omega-3 Fatty Acids

• Role: Maintains healthy cell membranes, helps fight DNA changes due to sun exposure.
• Food Sources: Wild-caught salmon, flaxseeds, walnuts, hemp seeds, organic canola oil, perilla oil, and notably, farm-raised trout.
• Notable Warning: Avoid farm-raised salmon; opt for wild-caught salmon or farm-raised trout instead.
  • “Turns out that farm raised trout, not farm raised salmon, actually convert their omega 6 feeds into omega 3s...If you see Atlantic salmon or farm raised salmon, run the other direction.” (00:57)

3. Astaxanthin

• Role: Strong photoprotective antioxidant.
• Food Sources: Algae (spirulina, chlorella), wild-caught salmon (the color is due to astaxanthin), supplements.
  • “Astaxanthin has been shown to have wonderful photoprotective effects...that color in wild caught salmon is astaxanthin.” (01:20)

4. Fern Block (Polypodium leucotomos)

• Role: All-natural antioxidant, used both topically and orally.
• Benefits: Protects skin cells from UV damage, supports collagen, hyaluronic acid, and elastin production; packed with polyphenols that benefit gut health.
  • “Fern block is an all natural antioxidant extract...helps protect our skin cells from UV damage and supports an increase in skin collagen, hyaluronic acid production and elastin.” (01:52)

5. Timed Release Vitamin C

• Role: Repairs damage to collagen, essential for skin repair.
• Recommendation: Take 1,000 mg twice daily due to its short duration in the bloodstream.
• Insight on Smoking: Smokers have more sun damage and wrinkles because vitamin C is depleted fighting oxidative stress from smoking.
  • “Vitamin C, unfortunately, is not readily available shortly after you take it...I really recommend people take time to release vitamin C about 1,000 milligrams twice a day.” (04:29)
  • “The reason smokers have such sun damage and wrinkles is because their vitamin C is all used up by the oxidative stress that smoking gives to them.” (04:45)

6. Ellagic Acid-Rich Foods

• Role: Photoprotective; combats collagen breakdown, redness, and swelling in the skin.
• Best Sources: Pomegranates, strawberries, raspberries, blackberries (all best consumed in season).
• Caution: Avoid pomegranate juice due to high sugar content.
  • “To get the benefit of a gallic acid, you should be eating pomegranates in season...not just pomegranate juice, folks. Much too much sugar.” (05:05)

7. Dark Mushrooms & Melanin

• Role: High melanin content helps absorb UV light, adding to your natural defenses.
• Recommended Varieties: Brown mushrooms, cremini, portobello; avoid white button mushrooms.
  • “Dark mushrooms contain lots of melanin...the more melanin you eat, believe it or not, the more that's transmitted into more melittin to protect you from UV exposure.” (05:30)
  • “Portobello mushrooms are a great dark mushroom that are now available in almost all grocery stores. I've got a great portobello mushroom pizza recipe on YouTube.” (05:48)

8. Vitamin D & Sunlight

• Balance Is Key: While it's important to shield your skin from excess sun, you should not block vitamin D production from sunlight.
• Benefits: Vitamin D is essential for calcium absorption, bone mineralization, and preventing low calcium in the blood.
• Supplement Recommendations: Most adults should take 5,000 IU/day; UCSD recommends 10,000 IU/day given most Americans are deficient.
• Dermatology Insight: Dr. Hollock (Boston University) advocated for sun-derived vitamin D, though his position was once controversial.
  • “So the last thing you want to do is block vitamin D production from sunlight...And now we know that sunlight is not as bad for you as you once thought it.” (06:19)
  • "If you can't get enough sunlight...I recommend most adults take 5,000 international units a day. The University of California, San Diego recommends...10,000 international units a day for protection." (07:01)

Notable Quotes & Memorable Moments

• On which fish to eat:

  • “If you see Atlantic salmon or farm raised salmon, run the other direction.” – Dr. Gundry (00:57)

• On beta carotene’s skin benefits:

  • “It acts as a natural sunscreen for your skin.” – Dr. Gundry (00:35)

• On the shortfall of Vitamin C in smokers:

  • “Their vitamin C is all used up by the oxidative stress that smoking gives to them.” – Dr. Gundry (04:45)

• On the misunderstood danger of sunlight:

  • “Sunlight is not as bad for you as you once thought it.” – Dr. Gundry (06:23)

• On mushrooms for skin health:

  • “Don't hesitate to get more of the darker mushrooms into your diet.” – Dr. Gundry (05:37)

Timestamps for Important Segments

• 00:30 – Detailed breakdown of beta carotene, omega-3s, astaxanthin, fern block.
• 04:29 – Timed release vitamin C for collagen repair.
• 05:05 – Ellagic acid and in-season berry recommendations.
• 05:30 – Mushroom melanin for added sun defense.
• 06:19 – Vitamin D, sunlight, and expert recommendations.

Final Thoughts

Dr. Gundry delivers a compelling argument that what you eat can strengthen your skin’s resilience to sun damage. Highlighting key nutrients like beta carotene, omega-3s, astaxanthin, ellagic acid, and more, he gives listeners practical, approachable advice for everyday nutrition and health.

For more healthy living tips and recipes, check out Dr. Gundry’s YouTube channel.