MET-Rx
Chocolate Chip Cookie Dough
TL:DR
In 2 Sentences
It’s one of the few bars that genuinely functions as a portable meal: around 30 grams of blended dairy protein, roughly 400 calories, and vitamin/mineral fortification, all packaged in a candy-bar-like format.
When to choose MET-Rx Chocolate Chip Cookie Dough
Choose it when you need substantial, grab-and-go fuel—post-lift, long shifts, travel days, or a purposeful calorie bump. Skip it if you’re after a light, low-sugar snack or a minimalist ingredient list.
What's in the MET-Rx bar?
This Chocolate Chip Cookie Dough bar leans hard into performance nutrition: 30g of complete dairy-and-egg protein from METAMYOSYN (milk protein isolate with whey isolates/concentrate, calcium caseinate, and a touch of egg white) puts it near the top of the protein charts.
Carbs also run high, driven by refined syrups and sugars (corn syrup, brown rice syrup, brown sugar) and milk chocolate chips, with sugar alcohols and glycerin added for chew and sweetness.
Fats come mostly from palm kernel/palm oils and dairy/cocoa fats, with smaller help from almond butter and canola. Net result: a calorie-dense, fortified bar (410 calories) that eats more like a compact refuel than a light snack.
Those cookie‑dough cues come from the milk chocolate chips, vanilla, and the sweet syrup base.
- Protein
- 30 g
- Fat
- 12 g
- Carbohydrates
- 45 g
- Sugar
- 18 g
- Calories
- 410
Protein
3015HIGHProtein comes from METAMYOSYN V100: milk protein isolate and whey (concentrate, isolate, partially hydrolyzed) lead, with calcium caseinate and a bit of egg white. That mix pairs fast-digesting whey with slower casein for a complete amino-acid profile and steadier release. These are filtered, refined dairy proteins—clean in taste, widely used, and excellent quality unless you must avoid milk or eggs.
Fat
129HIGHMost fat is supplied by fractionated palm kernel/palm oils and milk/cocoa fats in the coatings and chips, with smaller contributions from canola oil and almond butter. Expect a tilt toward saturated fat from palm and dairy, softened slightly by unsaturated fats from the nut butter and canola. Great for texture and shelf life, but not the heart‑healthy fat profile you’d get from olive oil or mostly‑nut‑based bars.
Carbs
4520HIGHThese are “refined” carbs, not whole‑food ones: corn syrup, brown rice syrup, brown sugar, and chocolate chips bring quick glucose, while glycerin and sugar alcohols (maltitol, erythritol) add sweetness and chew. That points to fast energy with a greater chance of a spike—and the protein and fat will blunt it somewhat. If you’re after slow, grain‑based carbs, this isn’t that bar.
Sugar
184HIGHThe 18g of sugar mainly come from corn syrup, brown rice syrup, brown sugar, and the milk chocolate chips. Extra sweetness and bulk come from sugar alcohols—maltitol and erythritol—and glycerin; these are highly processed and can bother sensitive stomachs at larger intakes. If you prefer fruit‑based sweetness, this reads more like confectionery.
Calories
410210HIGHAt 410 calories, it’s among the most energy‑dense bars. Roughly, protein contributes ~120 calories, carbs ~180, and fat ~110—so the load comes from all three macros. Think compact refueling window rather than a light between‑meal bite.
Vitamins & Minerals
Fortification is doing the heavy lifting: about 20–30% DV for several vitamins (B12 around 30%; vitamins A, C, D, E and multiple Bs near 20%) plus roughly 20% calcium. The premix (e.g., cyanocobalamin, vitamin D) and tricalcium phosphate supply most of this, with dairy proteins adding some calcium/phosphorus and potassium chloride contributing potassium. It’s fortified rather than naturally vitamin‑rich.
Additives
Expect a functional, processed toolkit: lecithins (soy/sunflower) to emulsify, glycerin to keep it soft, sugar alcohols for bulked sweetness, and fractionated palm oils to set the coating. These are effective and safe at food‑use levels, but they’re far from whole‑food ingredients. If you prefer very short labels, this one won’t feel minimalist.
Ingredient List
Cow's milk whey
Corn (maize) endosperm
Cow's milk casein
Eggs
Field corn starch
Sugarcane and sugar beet
Cow's milk
Cacao beans
Cocoa beans
Cow milk cream
What are people saying?
Sources
Range
“I buy the Met-RX Big 100 bars because they’re 30-32 grams of protein and they’re quite tasty.”
“I actually buy their cookies n cream bars pretty often. Like the taste, high protein and live an active lifestyle (commute on bike + workout often) so the calories are pretty good for my needs.”
“My favorite of all time it the Met-Rx super cookie crunch bar. 100g Bar for 410 calories, 32g protein, 42g carbs, 14g fat. It’s high in sugar but once in a while it’s my sweet meal. They taste SO good and take me a long time to eat”
Main Praise
Fans come for the protein and stay for the staying power. Redditor CalypsoBrat summed up the appeal: 30–32 grams of protein and actually tasty.
Alex on Amazon calls them his go-to thanks to the combination of taste, texture, size, and macros, and Mark notes they can stand in for a meal—a rarity among bars. Active readers like CriticalLootRNG appreciate the extra calories for bike commutes and training days.
Flavors get real love, too: Apple and Salted Caramel Brownie Crunch are singled out as standouts, with a candy-bar-like chew that doesn’t scream protein. For the protein-per-dollar and availability, Big 100s hit a sweet spot many boutique brands miss.
Main Criticism
Critics point to three themes: added sugar, processing, and texture.
Depending on the flavor, added sugar lands in the high teens to low 20s, and sweetness is boosted with sugar alcohols like maltitol and erythritol plus glycerin—ingredients that can bother sensitive stomachs.
The fat profile leans saturated (palm oils and dairy), which some readers want to limit. Texture can skew firm, especially when cold; one Amazon reviewer warned to be careful with your front teeth.
Flavor is polarizing by variety—MimiSikuu on Reddit warned against Super Cookie Crunch—and a few Amazon reviewers raised quality control flags, from rock-hard inclusions to underweight bars.
The Middle Ground
Perspective helps here: MET-Rx isn’t pretending this is a monkish, whole-food bar.
Men’s Health named Big 100 the Best High-Calorie Protein Bar, and LIVESTRONG recommends it as a legit meal-replacement for those who need more fuel—both takes that line up with the label.
On the other hand, Reddit user im_a_dick_head isn’t wrong to point out the sugar and saturated fat; they’re part of how this bar achieves its flavor and texture. If you want a slow-carb, low-sugar, short-ingredient-list snack, this will feel like too much.
But if you’re packing calories and protein into a small window—after training, during long days, or while traveling—the candy-bar exterior is the price of admission for 30 grams of complete protein and real satiety.
Texture and flavor can vary by batch and variety; that’s frustrating, but not universal, and storage temperature matters more than most of us think.
What's the bottom line?
If you need your protein bar to act like a meal, the MET-Rx Big 100 is one of the most reliable plays: about 30 grams of milk-based protein, roughly 410 calories, and flavors many people genuinely enjoy. The label is more functional than farmer’s market—refined syrups, palm oils, sugar alcohols, and a vitamin premix—so you’re trading a minimalist aesthetic for performance and convenience. Use it intentionally: as a post-workout refuel, a backup lunch, or a travel-day lifesaver.
If you prefer slow, grain-based carbs, fruit-first sweetness, or very short labels, look elsewhere. But for the right person on the right day, Big 100 doesn’t just bridge a hunger gap; it clocks in as the whole bridge.