Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Fatty acids, particularly essential fatty acids such as omega-3 and omega-6, have been studied for their role in supporting skin health and managing conditions like dermatitis. Scientific evidence suggests that fatty acids are integral components of cell membranes and are important for maintaining the skin’s barrier function. Deficiencies in essential fatty acids can lead to skin dryness, scaling, and increased susceptibility to irritants, which are features commonly seen in dermatitis. Several clinical trials have investigated the use of oral and topical fatty acid supplements (such as evening primrose oil, borage oil, and fish oil) in patients with atopic dermatitis and other forms of eczema. Results have been mixed but generally indicate a modest benefit, particularly in individuals with demonstrable deficiencies. For example, supplementation with gamma-linolenic acid (an omega-6 fatty acid) has shown some improvements in skin hydration and severity of dermatitis in certain studies. The evidence is not uniformly strong, and reviews highlight variability in study design and outcomes, but there is enough scientific rationale and clinical data to support their adjunctive use. Fatty acids are not a substitute for conventional therapies but may serve as a supportive measure. Large, well-designed studies are still needed to conclusively determine their efficacy and optimal dosing in dermatitis.

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