If you are one of those people who have a tough time packing on solid, powerful muscle, try MET-Rx Xtreme Size Up, specially designed for those who want to gain weight and pack on quality mass. MET-Rx Xtreme Size Up contains many key ingredients to help keep you growing when other weight gainers quit. MET-Rx specially selected nutrients are designed to meet your body's needs for both immediate and sustained energy and protein synthesis.

MET-Rx Xtreme Size Up contains the trusted clinically developed Metamyosyn protein with additional muscle mass nutrients including extra whey protein, creatine, glutamine and naturally occurring, high quality branched chain amino acids (BCAA's) to provide sustained. Highly bio-availbale fuel for your body's protein needs. MET-Rx Xtreme Size Up ultises complete proteins from the finest sources to ensure every amino acid required by your muscles is supplied.

MET-Rx Xtreme Size Up contains high fibre and top quality complex carbohydrates to intensify the time release effects of the Metamyosyn protein and muscle mass nutrients and to keep your muscles pumped with anabolic nutrients for a longer period. MET-Rx Xtreme Size Up is formulated with no fructose, so you won't experience the dreaded crash that comes from consuming sugar laden formulas. Keep both your muscles and your mind energised with complex carbs so you can keep training and growing.

MET-Rx Xtreme Size Up contains just the right amount of dietary fats essential for staying lean without packing on unwanted boy fat. Xtreme Size Up contains both quick digesting MCT's (medium chain triglycerides) and slower digesting flaxseed which allows for increased availability over an extended time period. Best of all, there are no unhealthy trans-fat in our formula. MET-Rx Size Up is packed with a rich source of specially selected vitamins and minerals essential to carbohydrate, protein and fat metabolism. Optimal intake of key vitamins and minerals is especially important when following a high calorie diet for mass gains, in order to assure proper usage and muscle metabolism of ingested calories. You can rest assured that the comprehensive blend of vitamins and minerals in Xtreme Size Up will complement your nutrition plan to help support your goals and optimal health.

In order to make serious gains, you need to train hard, get lots of rest, and take in plenty of key nutrients. MET-Rx Xtreme Size Up makes it easy to get the high quality protein, complex carbs and essential nutrients that are important for a serious, intensive training program.