A single serving of marshmallows weighs about 28 grams—that's four large marshmallows or just over a half cup of mini-marshmallows. There are about 90 calories in marshmallows if you consume a single serving of the basic form of the food. There is very little fat (less than 1 gram) in a single serving of marshmallows. Marshmallows are not a good source of protein. There is less than 1 gram of protein in a single serving of the treat.

A single serving of marshmallows weighs about 28 grams—that's four large marshmallows or just over a half cup of mini-marshmallows. There are about 90 calories in marshmallows if you consume a single serving of the basic form of the food. There is very little fat (less than 1 gram) in a single serving of marshmallows. Marshmallows are not a good source of protein. There is less than 1 gram of protein in a single serving of the treat.

A single serving of marshmallows weighs about 28 grams—that's four large marshmallows or just over a half cup of mini-marshmallows. There are about 90 calories in marshmallows if you consume a single serving of the basic form of the food. There is very little fat (less than 1 gram) in a single serving of marshmallows. Marshmallows are not a good source of protein. There is less than 1 gram of protein in a single serving of the treat.

A single serving of marshmallows weighs about 28 grams—that's four large marshmallows or just over a half cup of mini-marshmallows. There are about 90 calories in marshmallows if you consume a single serving of the basic form of the food. There is very little fat (less than 1 gram) in a single serving of marshmallows. Marshmallows are not a good source of protein. There is less than 1 gram of protein in a single serving of the treat.

A single serving of marshmallows weighs about 28 grams—that's four large marshmallows or just over a half cup of mini-marshmallows. There are about 90 calories in marshmallows if you consume a single serving of the basic form of the food. There is very little fat (less than 1 gram) in a single serving of marshmallows. Marshmallows are not a good source of protein. There is less than 1 gram of protein in a single serving of the treat.

A single serving of marshmallows weighs about 28 grams—that's four large marshmallows or just over a half cup of mini-marshmallows. There are about 90 calories in marshmallows if you consume a single serving of the basic form of the food. There is very little fat (less than 1 gram) in a single serving of marshmallows. Marshmallows are not a good source of protein. There is less than 1 gram of protein in a single serving of the treat.