NOW Oat Fiber Plus
Brand: NOW · Form: TABLET [E0155] On Market
Our assessment
The evidence shows that the primary active ingredient in NOW Oat Fiber Plus is calcium, which plays a well-documented role in bone health. Based on the data provided, our assessment is that this product may support your skeletal system, but you should be aware of important safety considerations and potential interactions with medications [NIH ODS].
How it works
Think of calcium as a structural building block for your bones. It supports bone mineralization and density, and also helps with neuromuscular relaxation and nerve signaling [NIH ODS]. This means calcium is not just for your skeleton — it helps your muscles relax and your nerves send the right signals throughout your body.
Safety profile
FDA received 592,059 total adverse event reports for all supplements, but specific event counts for this product are not available. For calcium specifically, data shows that high intakes might increase the risk of heart disease and prostate cancer. High levels 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].
Our recommendation
You should be cautious with calcium supplementation. If you take medications for osteoporosis (bisphosphonates), antibiotics (tetracycline or fluoroquinolone types), thyroid medication (levothyroxine), or seizure medication (phenytoin), take calcium at least two hours apart from these drugs [NIH ODS]. We recommend getting your calcium levels checked by a healthcare provider before starting this supplement, as the data highlights significant risks with high intake. Data not available for specific dosing guidance on this product.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | NOW |
|---|---|
| Serving Size | |
| Contents | 100.0 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