Vitamin A content was measured at 3520 IU/serving, nearly matching its 3500 IU label claim.
All tested B-complex vitamins (B-3, B-6, and folic acid) measured in excess of their label claims. Vitamin B-3 (22.67mg/serving), vitamin B-6 (2.51mg/serving), and folic acid (656mcg/serving) exceeded their label claims by 13.35%, 25.5%, and 31.2%, respectively.
Vitamin C content was measured at 94.4mg/serving, only 4.89% off its 90mg label claim.
Vitamin D-3 content was measured at 460 IU/serving, 15% over its 400 IU label claim.
Iron (15.4mg/serving), manganese (1.9mg/serving), and potassium (66.5mg/serving) measured at 14.44%, 17.39%, and 16.88% below their claims, respectively. Zinc, at 13.7mg/serving, exceeded its label claim by nearly 25%. Calcium (202.9mg/serving), magnesium (108.9mg/serving), and phosphorus (109.8mg/serving) fared better in the label accuracy category, exceeding their claims by 1.45%, 8.9%, and only 0.73%.
Bulk samples of this product passed the six mineral assays, indicating presence of under 1PPM (part per million) of arsenic, lead, cadmium, bismuth, antimony, and silver compounds.
All multivitamin products recorded similar macronutrient profiles, with minimal variation in calorie, fat, carbohydrate, and sugar content.
Nearly all key vitamins (A, B-3, B-6, C, and folic acid) measured at levels that either meet or exceed their Recommended Dietary Allowances (RDAs). Vitamin D-3 was the only exception–at 460 IU, one serving falls well below its 600 IU RDA.
Manganese, zinc, and iron were the only tested minerals to meet or exceed their RDAs (per serving). A single serving of this product would also provide over 20% of the RDAs of calcium and magnesium for adult men and women. Other tested minerals (phosphorus, potassium, and sodium) were present in small amounts.
Kirkland Signature passed all heavy metals assays, with levels of compounds like arsenic, lead, and cadmium all below 1.0PPM (parts per million).
No active ingredients are present at levels that threaten intake over their established Upper Limits (ULs).
Vitamin A (as vitamin A palmitate), at 3520 IU/serving, exceeds its RDA for men (3000 IU) and women (2300 IU).
Vitamin B-3 (as niacin/niacinamide), at 22.67mg/serving, exceeds its RDA for both men (16mg) and women (14mg).
Vitamin B-6, at 2.51mg/serving, exceeds the RDA for both men and women 19-50 years of age (1.3mg) as well as the RDA for older adults (men: 1.7mg, women: 1.5mg).
Folic Acid, at 656mcg/serving, exceeds its 400mcg RDA.
Vitamin C, at 94.4mg/serving, also exceeds its RDA for both men (90mg) and women (75mg).
Vitamin D-3, at 460 IU/serving, falls below the 600 IU RDA set for men and women 1-70 years of age.
Manganese, at 1.9mg/serving, meets and slightly exceeds the nutrient's RDA for women (1.8mg) but falls below its RDA for men (2.3mg). Zinc, at 13.7mg/serving, exceeds its RDA for both men (11mg) and women (8mg). Iron (15.4mg/serving) exceeds its RDA for women over 50 and men over 19 years of age (8mg) but fell below its RDA for women 19-50 years of age (18mg).
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.