Jarrow Formulas Fiber Perfect
Brand: Jarrow Formulas · Form: CAPSULE [E0159]
Our assessment
The evidence shows that Jarrow Formulas Fiber Perfect, which contains calcium, may support bone health, but there are important safety considerations you need to be aware of. Our assessment is that you should approach this product with caution, particularly regarding the potential risks of high calcium intake [NIH ODS].
How it works
Calcium acts as a master regulator for your body. It supports bone density and mineral deposition, which is crucial for strong bones. It also plays a role in neuromuscular relaxation, helping your muscles relax and nerves signal properly [NIH ODS].
Safety profile
The FDA has received a total of 592,059 adverse event reports for all products, though specific data for this product is not available. From the NIH data, high calcium 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
We recommend you speak with your healthcare provider before taking this supplement, especially if you have kidney concerns, a history of heart disease, or take any of the listed medications. Data not available for a specific recommended dose for this product, so follow the label instructions carefully and avoid exceeding the recommended intake [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Jarrow Formulas |
|---|---|
| Serving Size | |
| Contents | 150.0 Capsule(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