If you're trying to pack on muscle and lean up, you want a high-protein meal replacement with only moderate carbs and no fat. But there aren't many products on the market that fit that bill; the highest-protein MRP's usually have proportionately higher carbs and fat grams as well. A lot of users wanted the high-protein content but with a lower carb count (you do want some carbs) and no fat whatsoever. Nature's Best filled this void with their Isopure Meal Replacement Shake which quickly gained a loyal following that continues to increase. Isopure's protein payload is second to none at 50 grams, 100% of which is from whey protein isolate. That's more protein than 8 whole eggs! You get a modest amount of carbs to help replenish glycogen stores plus over 4 grams L-glutamine per serving. No fat, no lactose, no better high-protein MRP on the market. Use an Isopure shake to help build and preserve lean body mass while leaning up and navigating today's busy lifestyles.