Source Naturals Provinal Omega-7
Brand: Source Naturals · Form: SOFTGEL CAPSULE [E0161] On Market
Our assessment
Our assessment: The evidence shows that this product contains a single ingredient, calcium, which is essential for bone health. However, the data regarding its benefits and risks requires careful consideration. For general bone support, calcium is well-established, but you must be aware of potential risks associated with high intake [NIH ODS].
How it works
Think of calcium as a structural builder for your skeleton. It supports bone mineralization and density, and also plays a role in neuromuscular relaxation and nerve signaling. Your body needs a precise balance to use it effectively [NIH ODS].
Safety profile
The FDA has received 592,059 adverse event reports for products containing this ingredient. Side effects from high calcium levels include poor muscle tone, poor kidney function, constipation, nausea, weight loss, extreme tiredness, frequent urination, abnormal heart rhythms, and a high risk of death from heart disease. Some research also suggests that high intakes might increase the risk of heart disease and prostate cancer [FDA data] [NIH ODS].
Our recommendation
We recommend you do not start this supplement without first consulting your doctor. Because calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin, you must space out dosing or adjust your regimen under medical supervision [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Source Naturals |
|---|---|
| Serving Size | |
| Contents | 60.0 Softgel(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