🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 18% of ingredients have research evidence
B Label Compliance Grade

Product Label

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Label Data

45 Gram(s) Serving Size
27 Servings
Other Combinations Product Type
18% Evidence Coverage

Supplement Facts — Evidence Check

Calories
190 {Calories}
Total Fat
6 Gram(s) (9% DV)
Saturated Fat
3 Gram(s) (15% DV)
Cholesterol
45 mg (15% DV)
Total Carbohydrates
10 Gram(s) (3% DV)
Protein
25 Gram(s) (50% DV)
Calcium
157 mg (16% DV)
117 mg (12% DV)
✅ Within RDA (0.2× RDA of 700 mg) 📚 12 studies (Tier A: 0, B: 3)
RDA 700mg This product: 117mg UL 4000mg
31 mg (8% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 31mg
Sodium
190 mg (8% DV)
Potassium
260 mg (8% DV)

Other Ingredients

Protein Blend Amino Blend Cocoa Fiber Blend Medium Chain Triglycerides Non-Dairy Creamer Creatine Monohydrate Natural & Artificial flavors Salt Cellulose Gum Soy Lecithin Dicalcium Phosphate Calcium Carbonate Acesulfame Potassium Xanthan Gum Sucralose

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (98% of products) Structure/Function (89% of products) Nutrient (76% of products)

Target Groups

Adult (18 - 50 Years)

Product Information

📋 Directions for Use

Directions: For adults, mix one (1) scoop (45g) of powder with 6 oz. of cold water or milk. You can take MET-Rx(R) MyoSynthesis Whey any time during the day when you need nutritional support, especially to increase your daily caloric/protein intake. Consume within 10 minutes after mixing for best results. Blender – Simple Add one scoop of MET-Rx(R) MyoSynthesis Whey to blender filled with 6-8 ounces of your favorite beverage. Cover and blend for 20-30 seconds. For a delicious smoothie, add peanut butter, fruit, or yogurt along with ice cubes. Shaker – Simpler Fill a shaker bottle with 6-8 ounces of your favorite beverage. Add one scoop of MET-Rx(R) MyoSynthesis Whey. Cover and shake for 25-30 seconds. Glass & Spoon – Simplest Add one scoop of MET-Rx(R) MyoSynthesis Whey to 6-8 ounces of your favorite beverage. Stir for 20-30 seconds or until completely blended. ^^ For Mass Gaining: add higher calorie foods such as peanut butter, 1-2% milk, and fruit juices. For Dieters: add lower calorie foods such as skim milk, blueberries, and raspberries, or just use water.

⚠️ Warnings & Precautions

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

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

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

Contains milk and soy ingredients.

NOTICE: Use this product as a food supplement only. Do not use for weight reduction.

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

🧪 Formulation Notes

~ Contains naturally occurring Branched Chain Amino Acids. Each serving contains over 3.5 g of the following Branched Chain Amino Acids from protein: Which typically provides: ~ Isoleucine 0.95 g ~ Leucine 1.7 g ~ Valine 0.93 g

Contains milk and soy ingredients.

~25G PROTEIN WITHIN THIS DYNAMIC BLEND TO REFUEL & RECOVER ~5G OF FIBER

Additional Information

STORE AT ROOM TEMPERATURE AND AVOID EXCESSIVE HEAT

LEAN MASS & STRENGTH

Typical Amino Acid Profile (milligrams per 45 g scoop) Essential Amino Acids Histidine 361 mg Isoleucine 954 mg Leucine 1,713 mg Lysine 1,427 mg Methionine 353 mg Phenylalanine 563 mg Threonine 2,014 mg Tryptophan**** 268 mg Valine 932 mg Nonessential Amino Acids Alanine 729 mg Arginine 510 mg Aspartic Acid 1,817 mg Cysteine 338 mg Glutamic Acid 2,440 mg Glycine 3,472 mg Proline 984 mg Serine 938 mg Tyrosine 515 mg ** **L-Tryptophan is naturally occurring, not added. ** ***approximate values

Contents are sold by weight. Some settling may occur.

Please note: Crystalline Taurine will appear as small crystals within the powder

Use in conjunction with an intense daily exercise program and a balanced diet including an adequate caloric intake.

POST-WORKOUT

AN ADDITIONAL 5 GRAMS OF FIBER AND 6 GRAMS OF FAT MAKE THIS ADVANCED FORMULA A PERFECT SHAKE ANY TIME OF THE DAY TO HELP SATISFY APPETITE AND REFUEL. THIS DYNAMIC BLEND FEATURES WHEY PROTEIN, WHICH PROVIDES A COMPLETE FOUNDATION OF PROTEIN BUILDING BLOCKS.

~ Precise laboratory techniques are utilized to retain the active Whey Protein Peptides and Microfractions including: Beta-lactoglobulin, Alpha-lactalbumin, Glycomacropeptides, Lactoferrin, and other bio-active components. ~ Instantized whey proteins for easy mixing and complete dispersion in liquid.

Net Muscle Building (protein synthesis) - 5 hours after exercise Placebo Whey mg phenyl. Bet Muscle Protein Balance ~Consume two scoops to achieve these benefits Tipton, K. Med Sci Sports Exerc. 2004. 35 (12): 2073-2081

NEW

~INSTANTIZED FOR EASY MIXING

Natural and Artificial Flavors

PROTEIN POWDER

Can be taken after your workout, with a meal, or at any time of the day.

MET-RX(R) Shaping Every Body.(R)

54647 00A B54647 LAC

Product Details

UPC / SKU 7 86560 54647 8
DSLD Entry Date 2014-05-23
Product Type Other Combinations
Form Powder
Brand MET-Rx
DSLD ID 33142
Data Updated 2026-04-11

Research Evidence

46 Research Sources
55 Avg Quality Score
23 Meta Analysis
7 Systematic Review
7 Rct
4 Clinical Trial
2 Other
1 Guideline
1 Regulatory Source
A Phosphate binders for preventing and treating chronic kidney disease-mineral and bone disorder (CKD-MBD)
Meta Analysis The Cochrane database of systematic reviews 2018
A Phosphate binders for preventing and treating chronic kidney disease-mineral and bone disorder (CKD-MBD)
Meta Analysis The Cochrane database of systematic reviews 2025
B Phosphate binders for preventing and treating bone disease in chronic kidney disease patients
Meta Analysis The Cochrane database of systematic reviews 2011
B Calcium and phosphorus supplementation of human milk for preterm infants
Systematic Review The Cochrane database of systematic reviews 2017
B Radiographic and clinical outcomes of silicate-substituted calcium phosphate (SiCaP) bone grafts in spinal fusion: Systematic review and meta-analysis
Meta Analysis Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia 2020
B ESPGHAN/ESPEN/ESPR/CSPEN guidelines on pediatric parenteral nutrition: Calcium, phosphorus and magnesium.
Guideline Clinical nutrition (Edinburgh, Scotland) 2018
B Effect of different phosphate binders on fibroblast growth factor 23 levels in patients with chronic kidney disease: a systematic review and meta-analysis of randomized controlled trials
Meta Analysis Annals of palliative medicine 2022
B Pyridoxal 5 phosphate for neuroleptic-induced tardive dyskinesia
Meta Analysis The Cochrane database of systematic reviews 2015
B The impact of phosphate lowering agents on clinical and laboratory outcomes in chronic kidney disease patients: a systematic review and meta-analysis of randomized controlled trials
Meta Analysis Journal of nephrology 2022
B Calcimimetics treatment strategy for serum calcium and phosphate management in patients with secondary hyperparathyroidism undergoing dialysis: A systematic review and meta-analysis of randomized studies
Meta Analysis Therapeutic apheresis and dialysis : official peer-reviewed journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy 2024
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