Product Label

Sundown Naturals B12 1000 mcg

Brand: Sundown Naturals · Form: TABLET [E0155]

Our assessment

The evidence shows that Sundown Naturals B12 1000 mcg is a straightforward supplement, but we must be clear: the data provided is for the ingredient calcium, not for vitamin B12. Our assessment is that we cannot directly evaluate this specific product's benefits or risks because the available data does not match the product's active ingredient. You should look for a product where the health claims and safety data align with the ingredient listed on the label.

How it works

Based on the data provided for a different ingredient, calcium supports bone mineralization by helping deposit minerals into bone tissue and aids in neuromuscular relaxation for proper nerve signaling [NIH ODS]. This information does not apply to vitamin B12. For B12, you would need data on its role in red blood cell formation and nerve function, which is not provided here.

Safety profile

The FDA adverse event database contains a total of 592,059 reports across all supplements, but no specific side effect counts or report numbers are given for vitamin B12 in the provided data [FDA data]. For calcium, the data notes that high intakes might increase the risk of heart disease and prostate cancer, and can cause constipation, nausea, and abnormal heart rhythms [NIH ODS]. This information is not relevant to Sundown Naturals B12 1000 mcg. Data on side effects for this specific B12 product is not available.

Our recommendation

Our recommendation is to exercise caution. Since the provided data pertains to calcium and not to vitamin B12, we cannot make an evidence-based recommendation for Sundown Naturals B12 1000 mcg. You should consult with your healthcare provider to find a B12 supplement with supporting data that matches the ingredient, or check the manufacturer’s website for specific safety and efficacy information. Data not available for this product’s active ingredient.

AI-assisted analysis. Data sourced from NIH DSLD.

Supplement Facts

BrandSundown Naturals
Serving Size
Contents120.0 Timed Release Tablet(s)
Market StatusOff Market

How to Read This Label

Supplement labels contain several key sections regulated by the FDA:

  • Serving Size — The recommended amount per dose. Always check this — some products require multiple capsules per serving.
  • Amount Per Serving — Shows the quantity of each nutrient in the product, typically in IU (International Units), mg (milligrams), or mcg (micrograms).
  • % Daily Value (%DV) — Indicates how much a nutrient in a serving contributes to a daily diet. 5% DV or less is low; 20% DV or more is high.
  • Other Ingredients — Lists inactive ingredients like fillers, binders, and capsule materials (e.g., gelatin, cellulose, magnesium stearate).
  • Suggested Use — The manufacturer's recommended directions for taking the supplement, including timing and dosage.

Source: FDA Dietary Supplement Labeling Guide

Original Label

View Full DSLD Label (PDF)

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