FDC Vitamin B12 1000 mcg
Brand: FDC · Form: TABLET [E0155] On Market
Our assessment
The evidence shows that calcium is a critical mineral for your health, but the data on supplementation is nuanced. Our assessment is that you should prioritize getting calcium from food, as the safety of high-dose supplements is not fully settled. The data confirms that calcium supports bone density and nerve signaling [NIH ODS]. However, some research suggests that high calcium intakes might increase the risk of heart disease and prostate cancer [NIH ODS].
How it works
Think of calcium as a building block for your skeleton and a signal messenger for your muscles and nerves. It is essential for bone mineralization, helping to deposit minerals into your bone tissue for strength [NIH ODS]. It also supports neuromuscular relaxation, allowing your muscles to relax and your nerves to transmit signals properly [NIH ODS].
Safety profile
FDA received a total of 592,059 adverse event reports across all dietary supplements, though the specific number for calcium alone is not available. 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]. Additionally, calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
We recommend aiming to meet your calcium needs through dietary sources first. If you do use a supplement, take it with food and separate it from other medications by at least two hours to avoid absorption issues [NIH ODS]. The data does not provide a specific RDA for this product, so consult your healthcare provider for a personalized dose. Given the potential risks associated with high intakes, do not exceed recommended levels without medical supervision [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | FDC |
|---|---|
| Serving Size | |
| Contents | 100.0 Tablet(s) |
| Market Status | On 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