Collagen in Food: Does Eating It Actually Benefit Your Skin?
Translated & summarized from Maariv by baba
Dr. Maya Rozman discussed the trend of consuming collagen in foods like yogurt, stating that scientific evidence does not conclusively prove its benefits for skin. While the body produces collagen, ingested collagen is broken down and its destination is not guaranteed to be the skin. Research shows mixed results, with high-quality studies finding no significant impact on skin hydration or wrinkles. Dr. Rozman advises focusing on a balanced diet with sufficient protein and vitamin C, along with sun protection, as more reliable methods for skin health.
The story in 5 lines · by baba
- Scientific evidence does not conclusively prove that consuming collagen in food improves skin appearance.
- The body breaks down ingested collagen into amino acids and peptides for various uses.
- High-quality studies found no significant impact of collagen supplements on skin hydration or wrinkles.
- Dr. Maya Rozman recommends a balanced diet with protein and vitamin C for skin health.
- Paying extra for collagen-enhanced foods may not yield promised anti-aging effects.
A new trend of adding collagen to food products, such as yogurt, has emerged, prompting questions about its actual benefits for skin health. Dr. Maya Rozman addressed this trend, explaining that while collagen is crucial for skin, the body naturally produces it using amino acids from dietary proteins, vitamin C, and other nutrients.
When collagen is consumed in food or supplements, the digestive system breaks it down into amino acids and peptides. While some peptides may enter the bloodstream and potentially influence collagen production, there is no guarantee that ingested collagen will specifically contribute to skin collagen. The body utilizes these components for various functions.
Recent research on collagen supplements, particularly hydrolyzed collagen or collagen peptides, has yielded mixed results. Some studies suggest improvements in skin hydration and elasticity after several weeks of use. However, a comprehensive review in The American Journal of Medicine in 2025, analyzing 23 clinical trials, found no significant impact on skin moisture, elasticity, or wrinkles when excluding studies funded by commercial companies. Other reviews noted some positive outcomes but highlighted limitations such as small sample sizes and inconsistent evidence quality.
Dr. Rozman emphasized that current scientific evidence does not conclusively prove that adding collagen to food significantly enhances skin appearance. Most studies used specific dosages of collagen peptides over extended periods, making it difficult to generalize findings to all collagen-fortified products. Furthermore, collagen is not a complete protein as it lacks the essential amino acid tryptophan, meaning it shouldn't be prioritized over other quality protein sources solely for its collagen content.
To maintain healthy skin, Dr. Rozman recommends a balanced diet rich in protein from sources like eggs, dairy, legumes, fish, or chicken, along with sufficient vitamin C from fruits and vegetables. Adequate hydration, a varied diet, and sun protection are also vital for preventing premature skin aging. While collagen-containing foods are not harmful, they are unnecessary for individuals with adequate protein and nutrient intake. Consumers should be aware that paying a premium for collagen-enhanced products may not deliver the promised anti-aging effects, and regular yogurt with good nutritional value might be a more sensible choice.