This is a powder developed by Yoshifumi Iwamoto for energy intake during ultramarathons and other events. You can consume 600kcal with just this. 103g protein powder, 600kcal, one each of chocolate and strawberry flavors. The expiration date is still well in the future. - Product Name: answer600 - Net Weight: 103g - Calories: 600kcal - Flavor: Chocolate - Flavor: Strawberry Thank you for viewing.