From scouting about a few sites this is the info I got..
Servings and Dosage
5lb (2.27KG) Container
Serving size : 25gm - 91 servings per container
Instuctions for use: Take 2 measures (approx 25gms) and mix with 400ml of water or skim milk.
Consume 2 - 3 servings daily.
So thats 25g per serving.. not 50g.
Andy