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Xtreme Size Up Chocolate

MET-RxUpdated April 2026

This product has been discontinued. Label data shown is from the last available version.

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Product Information

Brand
MET-Rx
Form
Powder
Servings Per Container
16
UPC
7 86560 15828 2
Product Type
Other Combinations
DSLD Entry Date
2014-07-25

Target Groups

Adult (18 - 50 Years)

All Ingredients

IngredientAmount% DV
Calories580 {Calories}
Total Fat7 Gram(s)11%
Cholesterol60 mg20%
Total Carbohydrates79 Gram(s)26%
Protein60 Gram(s)120%
Vitamin A4500 IU90%
Vitamin C60 mg100%
Vitamin D240 IU60%
Vitamin E45 IU150%
Vitamin K40 mcg50%
Thiamin0.9 mg59%
Riboflavin1 mg59%
Niacin21 mg105%
Vitamin B61.2 mg62%
Folate400 mcg100%
Vitamin B123 mcg50%
Biotin180 mcg60%
Pantothenic Acid4 mg41%
Calcium1094 mg109%
Iron13 mg72%
Phosphorus867 mg87%
Iodine60 mcg40%
Magnesium96 mg24%
Zinc8 mg51%
Selenium28 mcg40%
Copper1 mg52%
Manganese1.5 mg75%
Chromium60 mcg51%
Molybdenum60 mcg81%
Chloride239 mg7%
Sodium420 mg18%
Potassium1630 mg47%
Creatine Monohydrate3000 mg
L-Glutamine3000 mg

† Daily Value not established.

Label Statements

General Statements: All Other Content

POST-WORKOUT

Suggested/Recommended/Usage/Directions

FOR MAXIMUM RESULTS, TAKE FOUR (4) SCOOPS WITH 16 OZ. WATER IMMEDIATELY FOLLOWING YOUR WORKOUT.

Brand IP Statement(s) re: (c), (TM), (SM)

MET-Rx(R) XTREME SIZE UP(R)

Brand IP Statement(s) re: (c), (TM), (SM)

MET-Rx(R) XTREME SIZE UP(R) HAS ONE OF THE HIGHEST PROTEIN CONTENTS PER SERVING ON THE MARKET.

Formula re: Contains

PROVIDING 60G OF PROTEIN AND 580 CALORIES PER 4 SCOOP SERVING, XTREME SIZE UP(R) SHOULD BE YOUR ONLY CHOICE FOR SERIOUS MASS GAINING!*

Brand IP Statement(s) re: (c), (TM), (SM)

IF YOU ARE ONE OF THOSE PEOPLE WHO HAVE A TOUGH TIME PACKING ON SOLID, POWERFUL MASS, TRY MET-Rx(R) XTREME SIZE UP(R), SPECIALLY DESIGNED FOR HARD GAINERS WHO WANT TO GAIN WEIGHT AND PACK ON MASS.* MET-Rx(R) XTREME SIZE UP(R) FEATURES FOUR OPTIMIZER BLENDS TO HELP YOU KEEP GROWING!*

General Statements: All Other Content

OUR SPECIALLY SELECTED NUTRIENTS ARE DESIGNED TO MEET YOUR BODY'S NEEDS FOR BOTH IMMEDIATE AND SUSTAINED ENERGY AND PROTEIN SYNTHESIS.* The Secret is the Source of Protein!

Brand IP Statement(s) re: (c), (TM), (SM)

METAMYOSYN(R) Muscle Mass Optimizer Blend combines the trusted METAMYOSYN(R) protein blend, with extra Whey Protein and Creatine, to provide sustained, highly bioavailable fuel for your body’s protein needs.*

General Statements: All Other Content

A combination of fast and slow proteins results in a more prolonged absorption rate allowing extended muscle-amino delivery.*

Brand IP Statement(s) re: (c), (TM), (SM)

By extending the delivery of all essential amino acids to your muscles, MET-Rx(R) Xtreme Size Up(R) helps to stop you from going into a catabolic state which can otherwise lead to muscle loss.* MET-Rx(R) METAMYOSYN(R) Muscle Mass Optimizer Blend utilizes complete proteins from the finest sources to ensure every amino acid required by your muscles is supplied.*

Formula re: Contains

Energizing Carb Optimizer Blend contains high fiber and glycogen-building carbs that work hand-in-hand with the Muscle Mass Optimizer Blend.* This specialized blend contains over 70g of carbs per serving to keep your muscles fully loaded with this important macronutrient.*

Brand IP Statement(s) re: (c), (TM), (SM)

MET-Rx(R) Xtreme Size Up(R) is formulated with no fructose, so you won't experience the dreaded crash and burn that comes from consuming sugar-laden formulas.

General Statements: All Other Content

Keep your mind energized with carbs so you can keep training and growing!* Lean Lipid Optimizer Blend contains just the right amount of dietary fats per serving. We know that your goal in your workout is to pack inches onto your biceps rather than your waist, so we didn't compromise quality with loads of unhealthy fats that could slow down your progress.

Brand IP Statement(s) re: (c), (TM), (SM)

MET-Rx(R) Xtreme Size Up(R) contains both quick digesting MCTs and slower digesting flaxseed and sunflower fats, which allows for energy availability over an extended time period.*

General Statements: All Other Content

MultiVitamin Optimizer Blend is packed with specially selected vitamins and minerals essential to carbohydrate and protein metabolism.* Optimal intake of key vitamins and minerals is especially important when following a high-calorie diet and exercise program for mass gains, in order to assume proper usage and muscle metabolism of ingested calories.* You can rest assured that our comprehensive blend of the right vitamins and minerals will complement your nutrition plan to support your bodybuilding 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.

Brand IP Statement(s) re: (c), (TM), (SM)

MET-Rx(R) Xtreme Size Up(R) makes it easy to get the high quality protein, energizing carbs and essential nutrients that are important to a serious, intensive training program.*

General Statements: All Other Content

{Chart} SUSTAINED PROTEIN SYNTHESIS OF WHEY AND CASEIN PROTEIN mmol/kg/min Approximate time points illustrating whey and casein’s differing effects on protein synthesis when taken on an empty stomach.

General Statements: All Other Content

LEAN MASS & STRENGTH*

General Statements: All Other Content

ONE OF THE HIGHEST PROTEIN CONTENTS PER SERVING ON THE MARKET

Formula re: Contains

- 60G PROTEIN - 580 CALORIES - 3G CREATINE - 3G GLUTAMINE - 79G ENERGIZING CARBS! per 4 scoop serving

General Statements: All Other Content

LEARN MORE by scanning QR CODE with your Smart Phone {QRC}

General Statements: All Other Content

Naturally and Artificially Flavored

FDA Statement of Identity

DIETARY SUPPLEMENT

Suggested/Recommended/Usage/Directions

Directions: For adults, add four (4) scoops (600 calories) (167g) to 16 ounces of cold water and mix thoroughly in a blender or shaker. For increased calories, use 16 ounces of skim milk (772 total calories) or 2% milk (844 total calories) instead of water. Increase or decrease the amount of liquid to achieve desired consistency. Drink immediately for best results.

General Statements: All Other Content

As a reminder, discuss the supplements and medications you take with your health care providers.

Formula re: Contains

Contains milk, egg and soy ingredients.

Precautions re: Allergies

Contains milk, egg and soy ingredients.

General Statements: All Other Content

Typical Amino Acid Profile (milligrams per 167 g serving*****) Essential Amino Acids Histidine 1,269 mg Isoleucine 2,680 mg Leucine 4,950 mg Lysine 4,194 mg Methionine 1,269 mg Phenylalanine 2,202 mg Threonine 2,531 mg Tryptophan**** 661 mg Valine 3,088 mg Nonessential Amino Acids Alanine 1,887 mg Arginine 1,577 mg Aspartic Acid 4,203 mg Cysteine 625 mg Glutamic Acid 9,065 mg Glycine 924 mg Proline 4,221 mg Serine 2,591 mg Tyrosine 2,238 mg ****L-Tryptophan is naturally occurring, not added. *****approximate values

FDA Disclaimer Statement

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Precautions re: Pregnant or Nursing or Prescription Medications

WARNING: Not intended for use by pregnant or nursing women. If you are taking any medications, planning any medical or surgical procedure or have any medical condition, consult your doctor before use.

Precautions re: All Other

Avoid this product if you have kidney disease. Discontinue use and consult your doctor if any adverse reactions occur.

Precautions re: Children

Not intended for use by persons under the age of 18. KEEP OUT OF REACH OF CHILDREN.

Storage

STORE AT ROOM TEMPERATURE AND AVOID EXCESSIVE HEAT.

Precautions re: All Other

TAMPER RESISTANT: DO NOT USE IF SEAL UNDER CAP IS BROKEN OR MISSING.

General Statements: All Other Content

Contents are sold by weight. Some settling may occur. Use in conjunction with an intense daily exercise program and a balanced diet including an adequate caloric intake.

Brand IP Statement(s) re: (c), (TM), (SM)

MET-Rx(R) Shaping Every Body.(TM)

Brand IP Statement(s) re: (c), (TM), (SM)

(C)2014

General: Product/Version Code

15828 09H B15828 DA4

Supplement Facts Panel

Supplement Facts
Serving Size 167 Gram(s)
Servings Per Container 16
Amount Per Serving% Daily Value*
Calories
580 {Calories}
Total Fat
7 Gram(s)11%
Cholesterol
60 mg20%
Total Carbohydrates
79 Gram(s)26%
Protein
60 Gram(s)120%
Vitamin A
4500 IU90%
Vitamin C
60 mg100%
Vitamin D
240 IU60%
Vitamin E
45 IU150%
Vitamin K
40 mcg50%
Thiamin
0.9 mg59%
Riboflavin
1 mg59%
Niacin
21 mg105%
Vitamin B6
1.2 mg62%
Folate
400 mcg100%
Vitamin B12
3 mcg50%
Biotin
180 mcg60%
Pantothenic Acid
4 mg41%
Calcium
1094 mg109%
Iron
13 mg72%
Phosphorus
867 mg87%
Iodine
60 mcg40%
Magnesium
96 mg24%
Zinc
8 mg51%
Selenium
28 mcg40%
Copper
1 mg52%
Manganese
1.5 mg75%
Chromium
60 mcg51%
Molybdenum
60 mcg81%
Chloride
239 mg7%
Sodium
420 mg18%
Potassium
1630 mg47%
Creatine Monohydrate
3000 mg
L-Glutamine
3000 mg

* Percent Daily Values are based on a 2,000 calorie diet.

† Daily Value not established.

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