BioStacks
Natural Factors
Big Friends®, Chewable Vitamin D3, Berry Bunch, 10 mcg (400 IU), 250 Chewable Tablets
1 Tablet
Best for
Ingredients (2)
Vitamin D3
40%Dose
400 IU
Target
1000–5000 IU
Form
Premium
Xylitol
Amount not found
Other Ingredients (3)
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Natural Color (unspecified)Colorant
Umbrella declaration for a colorant from a natural source (fruit, vegetable, or plant extract) that the label does not name specifically
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.
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
Children 3 years & older: Chew 1 tablet 1-2 times per day or as directed by a health professional.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$11.17
Cheaper than 76% of 552 vitamin D supplements
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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.