The collagen used in commercial products is not human collagen, it is usually cow or pig collagen, it is similar enough to have the same effect as human collagen but different enough that the body recognizes it as foreign. Anything the body recognizes as foreign has the potential to cause allergies.
There are 470 calories in a 1 biscuit serving of Hardee's Sausage & Egg Biscuit. Calorie breakdown: 57% fat, 30% carbs, 13% protein. Related Biscuits from Hardee's:
Calories. One serving size of a sausage biscuit is 111 grams. The 111 g serving contains 412 total calories. There are 243 calories from fat, 44 calories from protein and 125 calories from carbohydrates.