NOW Ultra Omega-3
Brand: NOW · Form: SOFTGEL CAPSULE [E0161]
Our assessment
The evidence shows that calcium is a critical mineral for bone health, but the data also reveals important risks that you need to consider carefully. Our assessment is that calcium supplementation is not for everyone, and you should only take it after evaluating your dietary intake and discussing any health conditions with your doctor.
How it works
Calcium acts as a master builder for your skeleton. It supports bone mineralization and density, and it also plays a key role in neuromuscular relaxation and nerve signaling [NIH ODS]. Think of it as the raw material your body uses to keep your bones strong and your muscles functioning properly.
Safety profile
The FDA has received a total of 592,059 adverse event reports for this product category [FDA data]. For calcium specifically, some research suggests that high intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. 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]. Additionally, calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
We recommend getting your calcium from food first. If you do use a supplement, do not exceed the RDA without medical supervision. Be aware that calcium supplements can interfere with thyroid medication and antibiotics, so take them at separate times. Because of the serious potential risks, including heart disease, you should speak with your healthcare provider before starting calcium [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | NOW |
|---|---|
| Serving Size | |
| Contents | 180.0 Softgel(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