The Vitamin Shoppe offers the Optimum Nutrition Gold Standard 100% Whey Protein Powder 8-lb. Bag in Double Rich Chocolate or Vanilla Ice Cream for $84.99. Coupon code "APRILOPT" cuts it to $64.99. With free shipping, that's tied with our March mention and the lowest price we could find now by $18, excluding the below mention. It contains 24 grams of protein per serving.

Note: iHerb offers it in Vanilla Ice Cream for $83.96. Add it to your cart to drop that to $71.37. Apply coupon codes "mkt1001" and "iherbus5" for a final price of $62.80 with free shipping.