2 of 3 people found the following review helpful
This review is from: Optimum Nutrition Serious Mass 5.4Kg Chocolate (Personal Care)
I have been using this product for about 5 months and I have gone from 9 stone (57kg) to 11 1/2 stone (73kg). I take half a serving after breakfast and another half serving before I go to bed. Only trouble is a 5.45kg bag only last me about 2 1/2 weeks, so I tend to buy 2, 5.45kg bags for a month. But overall it's a great product and can help you gain weight.