Dr. Clark Research Association Dr. Clark Zentrum Multivitamin and Mineral Formula without Iron
Brand: Dr. Clark Research Association Dr. Clark Zentrum · Form: CAPSULE [E0159] On Market
Our assessment
The evidence shows that this multivitamin contains calcium, a mineral essential for bone health, but the formulation lacks iron. Our assessment is that for most adults, a general multivitamin can help fill nutrient gaps, but you should carefully consider whether you need the specific levels of calcium provided in this formula [NIH ODS].
How it works
Think of calcium as a structural builder for your skeleton and a nerve signal regulator. It supports bone density and mineralization, and it helps your muscles relax and your nerves transmit signals properly [NIH ODS].
Safety profile
For the entire product category, FDA received 592,059 total adverse event reports. Specific to calcium, high intakes might increase the risk of heart disease and prostate cancer. Side effects of excessive calcium include 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 can also reduce the absorption of medications such as bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Start by assessing your dietary calcium intake from food sources like dairy or fortified alternatives. If you take this supplement, do not exceed the Tolerable Upper Intake Level. Take it separately from any thyroid or antibiotic medications by at least two hours. Data on the specific benefits of this exact formula is not available [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Dr. Clark Research Association Dr. Clark Zentrum |
|---|---|
| Serving Size | |
| Contents | 120.0 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