Product Label

Bronson Laboratories Sublingual Vitamin B12 1000 mcg

Brand: Bronson Laboratories · Form: TABLET [E0155] On Market

Our assessment

Our assessment: For a general audience seeking to support bone health and nerve function, calcium is a foundational mineral. The data confirms that adequate intake is essential, but the evidence shows that supplementation requires careful attention to dosing and timing to avoid risks. For this specific product, data on the sublingual vitamin B12 ingredient is not available, so our analysis focuses on the calcium data provided.

How it works

Think of calcium as a structural building block and a cellular messenger. It supports bone mineralization, helping you maintain strong bone density, and it plays a critical role in neuromuscular relaxation, allowing your muscles to relax and your nerves to signal properly [NIH ODS].

Safety profile

FDA received 592,059 total adverse event reports across all supplements. For calcium specifically, safety concerns include that high intakes might increase the risk of heart disease and prostate cancer. Very high levels of calcium in the blood and urine can cause poor muscle tone, poor kidney function, low phosphate levels, constipation, nausea, weight loss, extreme tiredness, frequent need to urinate, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS] [FDA data].

Our recommendation

Start by meeting your calcium needs through food first. If you supplement, take no more than the recommended dietary allowance and space it away from medications like bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin, as calcium can reduce their absorption [NIH ODS]. Always consult your healthcare provider before starting a new supplement, especially given the potential for serious side effects at high doses.

AI-assisted analysis. Data sourced from NIH DSLD.

Supplement Facts

BrandBronson Laboratories
Serving Size
Contents250.0 Tablet(s)
Market StatusOn 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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