BioStacks
Other Ingredients (12)
FructoseSweetener
Added free fructose is metabolized in the liver and at habitual intake is linked to elevated triglycerides, hepatic fat accumulation, and insulin resistance; an avoidable sugar load with no supplement benefit.
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 Cherry FlavorFlavor
A flavoring derived from natural cherry sources
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.
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Beetroot Juice PowderColorant
Natural red colorant and mild flavoring derived from beetroot; often spray-dried onto maltodextrin carrier
Citric AcidAcidulant
Natural acid derived from citrus fruits
Monk Fruit ExtractSweetener
Zero-calorie natural sweetener derived from the monk fruit (Siraitia grosvenorii)
How to Take It
Take it anytime
Fat-soluble — take with your largest fat-containing meal. Time of day doesn't matter.
With a meal containing fat
On the label
Pour 1 small capful (3.3g) of Isotonix Vitamin D with K2 powder into a cup. Add 2 fl oz /60 ml of water and mix. Take once daily or as directed by your health care provider.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$84.95
Pricier than 96% of 158 vitamin K supplements
Track this supplement in your stack
Get personalized insights, interactions, and coverage recommendations.
Get Started FreeSimilar Supplements
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.