BioStacks
Best for
Ingredients (33)
Phosphorus
100%Dose
690 mg
Target
100–500 mg
Form
—
Molybdenum
100%Dose
75 mcg
Target
45–75 mcg
Form
—
Potassium
100%Dose
1210 mg
Target
99–500 mg
Form
—
Leucine
100%Dose
6000 mg
Target
2000–5000 mg
Form
—
Vitamin B6
100%Dose
5 mg
Target
1.3–25 mg
Form
—
Nutrition
Calories, macros & sodium.
- Calories1340 Calorie(s)
- Total Fat3.5 Gram(s)
- Saturated Fat2 Gram(s)
- Cholesterol65 mg
- Total Carbohydrates277 Gram(s)
- Dietary Fiber2 Gram(s)
- Total Sugars11 Gram(s)
- Protein50 Gram(s)
Other Ingredients (9)
SucraloseSweetener
Dose context matters. As a trace excipient in a tablet coating or capsule, the amount is minimal and not a meaningful concern. The evidence below applies to the gram-level intakes typical of sweetened protein powders, pre-workouts, and drink mixes: a 2022 human trial (Suez et al., Cell) showed sucralose disrupts gut bacteria and worsens blood sugar control in healthy adults, and a 2023 study (Schiffman et al.) found that sucralose-6-acetate — a compound formed when sucralose is digested — was genotoxic to human cells in vitro. It remains an artificial sweetener with no nutritional purpose.
Acesulfame PotassiumSweetener
Older NTP rodent studies (1980s, contested) reported lymphoma and leukemia at very high chronic doses; modern reviews (FDA 2003, EFSA 2000) concluded no cancer risk at human exposure levels but the issue is not fully resolved (Mishra 2020 review). Animal evidence suggests gut microbiome disruption (Bian 2017 — male mice on Ace-K showed altered microbiota and metabolic markers). Manufacturing uses methylene chloride, with potential residue concerns. Purely cosmetic additive — risk:benefit unfavorable for supplements.
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 and Artificial FlavorsFlavor
The 'artificial' component means synthetic chemicals are used, but the exact compounds are proprietary and not disclosed on the label. If you have sensitivities or allergies, you cannot verify what's in it. Products using only natural flavors are more transparent.
CocoaFlavor
Common food ingredient used for chocolate flavoring in supplements
Guar GumThickener
Natural thickener derived from guar beans
Protein Blend (blend (amino acid/protein))
Not reviewed yet
TRAACS Magnesium Bisglycinate Chelate (magnesium)
Not reviewed yet
How to Take It
Take it anytime
No evidence a formula this broad works better at any particular hour. Take it with a meal containing fat — the vitamins A, D and E in it absorb poorly without one.
With a meal containing fat
Keep it away from protein-heavy meals, high-oxalate foods like spinach and coffee
Space it a couple of hours from Green Tea Leaf Extract
On the label
Ways to enjoy your Bulk 1340 1 Shake Combine with cold water, milk or your favorite beverage in a shaker cup 2 Blend Make a delicious smoothie adding fruits, juices, peanut butter or yogurt
General guidance based on the ingredients, not a substitute for the label or your doctor.
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the 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. studied 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.