Douglas Labs - Basic Preventive 5 270 caps

Supplement facts

Ingredient	Amount per serving	% daily value
Vitamin A	3330 mcg	370%
Vitamin C	535 mg	594%
Vitamin D3	1.1 mcg	6%
Vitamin E	119 mg	357%
Vitamin K1	27 mcg	23%
Thiamine	44 mg	3,667%
Riboflavin	20 mg	1,538%
Niacin	85 mg	531%
Vitamin B6	22 mg	1,294%
Folate	592 mcg DFE	148%
Folic Acid Part of Folate	355 mcg	—
Vitamin B12	44 mcg	1,833%
Biotin	133 mcg	443%
Pantothenic Acid	178 mg	3,560%
Choline	65 mg	12%
Calcium	220 mg	17%
Iodine	70 mcg	47%
Magnesium Complex	220 mg	52%
Zinc	9 mg	82%
Selenium	90 mcg	164%
Copper	0.8 mg	89%
Manganese	9 mg	391%
Chromium	85 mcg	243%
Molybdenum	65 mcg	144%
Potassium Complex	44 mg	1%
Citrus Bioflavonoids Complex	44 mg	—
Inositol	22 mg	—
Para-Aminobenzoic Acid	20 mg	—
Boron	0.9 mg	—
Vanadium	18 mcg	—

Suggested Usage: As a dietary supplement, adults take 4 capsules daily with food or as directed by your health professional.

Label data from the Dietary Supplement Label Database.

Label data as of 3 Sep 2026

57.3 / 100Good

This is a high-dose broad-spectrum multi with strong B-vitamin coverage but notably limited vitamin D, calcium, magnesium, and potassium.

Scoring criteria

Quantity
75 / 100
The routine supplies adequate amounts of many vitamins but is clearly partial for vitamin D, calcium, magnesium, and potassium.
Form
65 / 100
Several relevant chemical forms, including the magnesium and potassium complexes and vitamin A source, are not identified sufficiently to resolve their absorption or tolerability properties.
Convenience
55 / 100
The label directs adults to take one four-capsule serving daily with food, and the package title states 270 capsules.
Label accuracy
75 / 100
The quantified panel is internally consistent, but several complex and nutrient forms remain unspecified.
Formula balance
60 / 100
The formula is substantially skewed toward high B-vitamin and other vitamin doses while providing little vitamin D, calcium, magnesium, or potassium.
Purity
75 / 100
The label lists ordinary capsule excipients without documented contaminants or product-specific purity controls.
Cofactors
0 / 100
The additional bioflavonoids, inositol, PABA, and boron are not supported here as quantified complementary cofactors with established added benefit.