MET-Rx · Protein Bar
Big 100 Bar · Peanut Butter Pretzel
- High Sugar
- No Artificial Sweeteners
30g protein
410 calories · per 1 bar (100g)
✦ Protein Score
Good
7.3g of protein for every 100 calories. The more of the calories that come from protein, the higher the score.
Protein From
- Soy Protein
- Whey Protein Isolate
- Micellar Casein
- Hydrolysed Whey
- Egg White
- Peanut Flour
- Caseinate
- Whey Protein Concentrate
Complete proteinSee analysis
Flavours (6)
Protein Pal Analysis
Protein Source
Where the 30g of protein comes from, largest contributor first
Complete protein. The only common plant protein with a full amino acid profile on its own.
Complete protein, fast absorbing. Filtered to remove most of the lactose and fat.
Complete protein. Slow digesting, releasing amino acids over several hours.
Complete protein. Whey that has been pre broken down, making it the fastest absorbing form.
Complete protein with no lactose and almost no fat.
Defatted peanuts, roughly half protein by weight. Low in methionine.
Complete protein. Slow digesting, releasing amino acids over several hours.
Complete protein, fast absorbing. The least processed whey, with more lactose and fat than isolate.
Also Contains
Tropical Oils
- Fractionated Palm Kernel Oil
Pressed from the fruit of the oil palm rather than its seed, so it is not one of the seed oils. Around half saturated fat, mostly palmitic acid, and a meta-analysis of controlled trials found it raises LDL cholesterol compared with vegetable oils low in saturated fat. Palm kernel oil comes from the seed inside the same fruit and carries more saturated fat again. Both stay solid at room temperature without hydrogenation, which is why coatings use them.
Sun et al., Journal of Nutrition (2015)
Sugar Alcohols
- Glycerine
Chemically a sugar alcohol, used to keep bars soft and moist rather than to sweeten. The EU safety authority found no safety concern at food levels. Large amounts can draw water into the gut and have a laxative effect.
EFSA re-evaluation of glycerol E422 (2017)
Emulsifiers & Thickeners
- Carrageenan
A seaweed extract used to stop drinks separating. Animal and cell studies report inflammation and irritation of the gut lining. Human evidence at the levels used in food is limited, and regulators currently consider it safe.
Tobacman, Environmental Health Perspectives (2001) - Cellulose Gum
Also called carboxymethylcellulose, a thickener. A randomised controlled feeding trial in healthy adults found it altered gut bacteria and reduced the protective mucus layer of the gut. The trial was small and short.
Chassaing et al., Gastroenterology (2022)
Seed Oils
- Soybean Oil
Refined oils high in omega-6 linoleic acid. Controlled trials show oils rich in linoleic acid lower LDL cholesterol compared with saturated fat, and heart health bodies support their use. The concern raised in popular coverage is about the omega-6 to omega-3 balance of the wider diet, and about oxidation products when these oils are repeatedly heated.
American Heart Association advisory, Circulation (2017)
Nutrition
per 1 bar (100g)Protein efficiency
computed from the labelIngredients
Ingredients
METAMYOSYN® Blend (Soy Protein Crisp [Soy Protein Isolate, Tapioca Starch, Salt], Whey Protein Isolate, Casein, Soy Protein Isolate, Hydrolyzed Whey Protein Isolate, Egg White, L-Glutamine), Corn Syrup, High Fructose Corn Syrup, Sugar, Enriched Wheat Flour (Wheat Flour, Niacin, Reduced Iron, Thiamin Mononitrate, Riboflavin, Folic Acid), Fractionated Palm Kernel Oil, Glycerine, Partially Defatted Peanut Flour, Rolled Oats, Invert Evaporated Cane Syrup, Peanuts, Water, Oligofructose, Peanut Butter (Peanuts), Nonfat Milk, Fructose, Sodium Caseinate, Salt, Soy Lecithin, Whey Protein Concentrate, Monoglyceride, Unsweetened Chocolate, Heavy Cream (Cream, Milk, Cellulose Gel, Carrageenan, Cellulose Gum), Butter (Cream, Salt), Vegetable Oil (Corn, Canola, And/Or Soybean), Soybean Oil, Tocopherols Added To Protect Flavor, Sodium Citrate, Carrageenan, Sodium Bicarbonate, Maltodextrin, Sodium Phosphate, Yeast. Vitamins and Minerals Blend: Calcium Carbonate, Magnesium Oxide, Ascorbic Acid, Ferric Orthophosphate, dl-Alpha Tocopheryl Acetate, Niacinamide, Zinc Oxide, Copper Gluconate, d-Calcium Pantothenate, Vitamin A Palmitate, Pyridoxine Hydrochloride, Riboflavin, Thiamin Mononitrate, Folic Acid, Biotin, Potassium Iodide, Cyanocobalamin. Contains milk, egg, wheat, soy and peanut ingredients. Made in a facility that also processes tree nuts and sesame.
Nutrition values are taken from the manufacturer’s published label and may vary by flavour or region. Trademarks and imagery are the property of their respective owners.
