Suplementación nutricional con omega 3 en retinarelación entre volumen y concentración en productos comerciales

Abstract

Objective To analyse the morphometric characteristics and the concentration of (docosahexaenoic acid) DHA and eicosapentaenoic acid (EPA) of the different nutritional supplements with omega 3 available on the market for retinal disease. Material and methods A double-blind study was conducted with a single observer, of the different omega 3 supplementation tablets sample marketed in Spain. The length of the tablet, the concentration of omega 3 in total, as well as DHA and EPA were studied separately using the amount provided by the manufacturer and the volume of the capsule calculated from the development of a specific formula for it. Results A total of 10 different nutritional supplements were included. The mean of total omega 3, DHA and EPA was 383.10 ± 160.90, 210.72 ± 93.3, and 112.34 ± 140.98 mg, respectively. The mean size of the capsules was 14.77 ± 0.19 × 8.13 ± 0.09 mm The smallest sized capsule was that of Oftan macula omega® (Esteve, Barcelona, Spain). Brudymacula® (Brudylab, Barcelona, Spain) and Brudyretina 1.5 g® (Brudylab, Barcelona, Spain) tablets contained more DHA, with Nutrof omega® (Thea Laboratories, Barcelona, Spain) having the lowest concentration of omega 3, DHA and EPA, per tablet. Conclusion There are significant differences in size, volume, quantity, and concentration of omega 3 and its derivatives, between different commercial preparations. Only the knowledge of the characteristics of the nutritional supplements will enable us to provide a more personalised indication of their use for our patients.