PureFormulas Optimized Zinc
Brand: PureFormulas · Form: CAPSULE [E0159] On Market
Our assessment
The evidence shows that the active ingredient in this product is calcium, a mineral essential for bone health. However, our assessment is that you should be cautious: high calcium intakes are linked to potential risks including heart disease and prostate cancer [NIH ODS]. Data not available for the specific brand or product name.
How it works
Think of calcium as a building block for your skeleton. It supports bone mineralization and density, and it also plays a key role in neuromuscular relaxation and nerve signaling [NIH ODS].
Safety profile
FDA has received 592,059 total adverse event reports across all supplement categories. For calcium specifically, high levels in the blood and urine can cause poor muscle tone, poor kidney function, low phosphate levels, constipation, nausea, weight loss, extreme tiredness, frequent urination, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS] [FDA data]. Calcium supplements may also reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
We recommend you get your calcium primarily from food sources. If you choose to supplement, do not exceed the RDA without medical supervision. Check with your doctor or pharmacist about potential interactions with any medications you take, especially antibiotics or thyroid medication [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | PureFormulas |
|---|---|
| Serving Size | |
| Contents | 90.0 Vegetarian Capsule(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