Iron-Tek Whey Protein Natural Vanilla Flavor
Brand: Iron-Tek · Form: POWDER [E0162] On Market
Our assessment
The evidence shows that this product contains calcium as a key ingredient. Our assessment is that calcium is essential for bone health, but you must be careful with dosing and potential interactions. The data for this specific product is limited, so we will focus on the calcium content [NIH ODS].
How it works
Think of calcium as a building block for your bones. It supports bone mineralization and density, and it also plays a role in neuromuscular relaxation — helping your muscles relax and your nerves signal properly [NIH ODS].
Safety profile
FDA received 592,059 total adverse event reports for all supplement products. For calcium specifically, high intakes might increase the risk of heart disease and prostate cancer. 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 [FDA data] [NIH ODS]. Calcium can also reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Start by checking your total calcium intake from food and other supplements. If you take medications for osteoporosis, thyroid issues, or infections, take this product at a different time of day to avoid absorption issues [NIH ODS]. Data not available for specific dosing of this product.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Iron-Tek |
|---|---|
| Serving Size | |
| Contents | 14.2 Oz(s) 404.0 Gram(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