Schiff Cal-Mag-Zinc
Brand: Schiff · Form: TABLET [E0155] On Market
Our assessment
The evidence shows that Schiff Cal-Mag-Zinc provides three essential minerals, but calcium is the primary ingredient with the most significant data. We assess that this supplement can support bone health, but you must be aware of the potential risks and interactions associated with high calcium intake [NIH ODS].
How it works
Think of calcium as a building block for your skeleton. It supports bone mineralization and density, and also plays a role in neuromuscular relaxation and nerve signaling [NIH ODS]. The data does not provide specific mechanistic details for the magnesium or zinc components of this product.
Safety profile
The FDA has received a total of 592,059 adverse event reports across all supplement categories. For this specific product, data regarding side effects is not available. However, based on the calcium ingredient, 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 need to urinate, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS].
Our recommendation
Before taking this supplement, review all medications you are taking, as calcium can reduce the absorption of bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. We recommend you do not exceed the recommended dose on the label and discuss this product with your healthcare provider, especially if you have a history of kidney problems or heart disease [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Schiff |
|---|---|
| Serving Size | |
| Contents | 90.0 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