Jarrow Formulas Magnesium Optimizer
Brand: Jarrow Formulas · Form: TABLET [E0155]
Our assessment
The evidence shows that Jarrow Formulas Magnesium Optimizer is designed to support bone health and nerve function. Our assessment: based on the data provided, the product contains calcium, which plays a key role in bone mineralization and neuromuscular relaxation [NIH ODS]. However, the data does not specify the exact amount of calcium per serving, so you should check the label for precise dosing.
How it works
Think of calcium as a structural builder for your bones. It supports bone density and mineral deposition, and it also helps your muscles relax and your nerves signal properly [NIH ODS]. This combination can be especially helpful if you are looking to maintain strong bones as you age.
Safety profile
FDA received 592,059 total adverse event reports across all supplements, though specific numbers for this product are not available. For calcium specifically, the data notes that very high intakes may increase the risk of heart disease and prostate cancer [NIH ODS]. High blood or urine calcium levels 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]. Calcium can also reduce the absorption of bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Start by checking the label for the exact calcium content. If you take prescription medications, particularly antibiotics or thyroid medication, take this supplement at least two hours apart to avoid absorption issues [NIH ODS]. Do not exceed recommended doses, as high calcium levels pose serious health risks [NIH ODS]. For a personalized recommendation, consult your healthcare provider.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Jarrow Formulas |
|---|---|
| Serving Size | |
| Contents | 100.0 Tablet(s) |
| Market Status | Off 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