BioStacks
Life Extension
Advanced Whey Protein Isolate Vanilla Flavor
Powder · 23 Grams · 20 servings · $1.28/serving
Best for
Ingredients (7)
Potassium
91%Dose
90 mg
Target
99–500 mg
Form
—
CreaPure Creatine Monohydrate
67%Dose
2 g
Target
3–5 g
Form
Premium
Whey Protein
70%Dose
14 g
Target
20–30 g
Form
Not listed
L-Glutamine
60%Dose
3000 mg
Target
5000–15000 mg
Form
—
Phosphorus
40%Dose
40 mg
Target
100–500 mg
Form
—
Nutrition
Calories, macros & sodium.
- Sodium40 mg
Other Ingredients (11)
Caramel ColorColor
Class III and IV caramel colors contain 4-methylimidazole (4-MEI), classified by IARC as Group 2B (possibly carcinogenic to humans) in 2011 (Monograph Vol. 101). California Prop 65 lists 4-MEI as a known carcinogen; products delivering >29 mcg/day require a cancer warning label. NTP TR-535 (2007) found 4-MEI caused lung tumors in mice. Major cola brands (Coca-Cola, Pepsi) voluntarily reformulated 2012-2014 to reduce 4-MEI below California thresholds. Because labels never specify Class I (sugar + heat only, safer) vs Class III/IV (ammonia-process, contains 4-MEI), consumers cannot verify which they're consuming. Combined with the additive's purely cosmetic purpose, the risk:benefit ratio is unfavorable for any supplement.
MaltodextrinBinder
Spikes blood sugar faster than table sugar (glycemic index 85–105). Research links it to gut bacteria changes that may promote intestinal inflammation (Nickerson et al. 2015). Used as a cheap filler — adds nothing beneficial.
Natural FlavorsFlavor
Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.
Gum AcaciaBinder
Natural plant gum (acacia) used as a binder, stabilizer, and emulsifier in foods and supplements
Guar GumThickener
Natural thickener derived from guar beans
StarchBinder
Carbohydrate polymer used as a binder, filler, and disintegrant in tablets and capsules
Whey ProteinProtein Source
Common dairy-derived protein that sometimes appears in the other ingredients list due to label parsing
StarchBinder
Carbohydrate polymer used as a binder, filler, and disintegrant in tablets and capsules
How to Take It
Take it anytime
Take it with food — the potassium in it is what makes this kind of product feel nauseating on an empty stomach.
With food
Glutamine does better on an empty stomach, but something else in this bottle needs food. Taking the whole product with a meal is the better trade — an upset stomach is why most people stop.
On the label
Mix (1) scoop in approximately 4 to 8 ounces of water or beverage of choice (to taste) daily, or as recommended by a healthcare practitioner. Drink immediately.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$25.65
Near the median of 18 phosphorus supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.