I don't see why not. I was thinking it would be good, because I take Omega-3 sometimes and there's nowhere to log it. Plus, I can see that I'm not getting enough of the RDA for Vit. E, and thought it would be good to add supplements (vitamins) to my diet, and then to my food log.
DISCLAIMER: I am NOT an expert in nutrition, fitness, or exercise. Any advice given is only meant to be helpful based on what information I've gathered, and should not replace any medical treatment or any other true advice you may get from another source. Take it with a grain of salt, and then log that in your Foods tab!