Great resource so far,
I was recently placed on a medication called coumadin and told to be careful about eating foods with vitamin K. Its hard to know the vitamin K content on most foods. This app takes away the guess work. You can narrow down the setting to include your nutrients of interest and adjust the portion size. I would think this would be useful for people on other restricted diets ie. gout, low sodium or potassium. My only suggestion would be to include more foods.
Coumadin user about
Nutrition Complete