Sr24?
 

I am not sure if this is where to post this. I was comparing a value calculated by the USDA SR (Standard Reference) Nutrient Database, also known as SR24 with a calculated value given inside Fitday and noticed that the value in Fitday was higher by about 100 calories. I also noticed that the description of the item (Pork, sirloin chops or roasts, bone-in seperable lean and fat raw) was identical to the SR24 descrption. Does Fitday use the SR as one of its nutrient sources?