The seasonal nutritional value of red (Jania rubens, Laurencia papillosa, Spyridia filamentosa and Dasya rigidula) and brown macroalgae (Padina pavonia and Stypopodium schimperi) was evaluated as a dietary supplement for human and animal nutrition FLU RELIEF based on proximate and fatty acid profiles.The protein content varied from 0.80% (L.papillosa) to 3.41% (J.
rubens) of wet weight with the highest values in winter.The highest lipid levels were recorded in S.schimperi (2.03% in spring, 2.16% in summer), the lowest in S.
filamentosa (0.08% in spring).The ash content of J.rubens (46.11-51.
63%) was significantly higher than that of the other species (2.28-16.57%).Analysis of the fatty acid composition showed that these seaweed species are Meat very rich in n-3 fatty acids.