Jarrow Formulas Magnesium Optimizer
Brand: Jarrow Formulas · Form: TABLET [E0155] On Market
Our assessment
Our assessment is that Jarrow Formulas Magnesium Optimizer is a targeted supplement designed to support bone health and muscle function through its calcium content. The evidence shows that calcium is essential for bone mineralization and neuromuscular relaxation [NIH ODS]. However, you should be aware that this product contains calcium as its primary active ingredient, and we need to review the specific data on that mineral carefully.
How it works
Think of calcium as a structural building block for your skeleton and a key signaling molecule for your muscles and nerves. It supports bone density and mineral deposition, and it helps your muscles relax and your nerves send signals properly [NIH ODS]. This makes it important for maintaining strong bones and normal muscle function.
Safety profile
The FDA has received a total of 592,059 adverse event reports across all products, though specific report counts for this supplement are not isolated. Data not available for side effects specific to this product. However, based on the calcium ingredient, 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 [NIH ODS]. Calcium can also reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Our recommendation is that you use this supplement only if you have a confirmed need for additional calcium, such as a diagnosed deficiency or a doctor's recommendation. Because of potential risks at high intakes and important drug interactions, you should consult your healthcare provider before starting. Do not exceed the recommended dose on the label. For most adults, getting calcium from food sources is preferred, and you should be cautious about combining this with other calcium-containing supplements or medications [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Jarrow Formulas |
|---|---|
| Serving Size | |
| Contents | 200.0 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