Omega Blend supplements typically contain a combination of omega-3, omega-6, and omega-9 fatty acids derived from sources like fish oil, flaxseed oil, and other plant oils. The scientific rationale for supporting nail health with omega fatty acids is based on their established roles in maintaining cell membrane integrity and supporting skin health. Some studies indicate that deficiencies in essential fatty acids can lead to brittle nails or other nail abnormalities. For example, omega-3 fatty acids are known to possess anti-inflammatory properties and contribute to the hydration and pliability of skin and nail tissues.

However, direct clinical studies specifically assessing the impact of omega blends or individual fatty acids on nail growth, strength, or appearance are limited. Most available evidence is extrapolated from broader research on skin and hair health, with only a few case studies or anecdotal reports suggesting potential benefits for nails. The overall evidence base is therefore modest, with more robust studies needed to establish a clear, direct benefit for nail health. Current recommendations to use Omega Blend supplements for nails are scientifically plausible but not strongly supported by direct, high-quality clinical evidence.