Value Per Nutrient Food 0.81 g 100 grams Serine Pork, fresh, variety meats and by-products, heart, raw 0.81 g 100 grams Serine Beef, short loin, top loin, steak, separable lean and fat, trimmed to 1/8" fat, all grades, raw 0.81 g 100 grams Serine Beef, chuck eye roast, boneless, America's Beef Roast, separable lean only, trimmed to 0" fat, choice, raw 0.81 g 100 grams Serine Seeds, safflower seed kernels, dried 0.81 g 100 grams Serine Seeds, sunflower seed kernels, toasted, with salt added 0.81 g 100 grams Serine Mollusks, squid, mixed species, cooked, fried 0.81 g 100 grams Serine Seeds, sunflower seed kernels, toasted, without salt 0.81 g 100 grams Serine Beef, short loin, top loin, steak, separable lean and fat, trimmed to 1/8" fat, choice, raw