Weider Mega Mass 2000 and 4000 were pretty much the same product, they just made the serving size larger for the 4000.
The Mega Mass 2000 and 4000 were very inexpensive to make, because the main ingredient was sweet Diary Whey, which only costs like 40-50 cents per lb.A friend of mine who worked for Weider formulated that product.It was one of there best selling products, and also made them a great profit margin.The Mega Mass 2000 only cost like $4 a box to make including packaging.
If you like the Mega Mass 4000 just go buy some sweet dairy Whey, and and your favorite flavoring cocoa or vanilla,then get some sweetener .You can buy Sweeet Dairy Whey online real cheap.The only problem is Sweet Dairy Whey contains a shit load of lactose.