While the Non-Structural Carbohydrate (NSC or sugars plus starches) content is important to consider when looking at the cornerstones of a horse's diet - such as hay and grain - it is not as meaningful in products with such small serving sizes, like supplements. For example, a grain with a serving size of 9 lbs. and NSC content of 12% would be providing far more sugars and starches (490 grams) than a supplement with an 80 gram serving size and a 12% NSC content (9 grams).