It's 4 grams of protein, which is not so much, 24 grams of carbs ( if i am not mistaken). 9 grams of fat that comes from nuts only. All in all it's not the best source of protein, luna bars have 14 grams. I think if you eat a good combination protein+carbs meal before your rides and use larabars as snack after rides or during it should be good. I personally bought it after a spinning class, and just really liked the taste.