NOW Tri-3D Omega
Brand: NOW · Form: SOFTGEL CAPSULE [E0161] On Market
Our assessment
The evidence shows that the calcium component in NOW Tri-3D Omega plays a foundational role in bone health, but it also carries important risks you need to know. Calcium supports bone density and mineralization, as well as muscle relaxation and nerve signaling [NIH ODS]. However, for a general audience, we must be clear: the data does not provide a specific daily dose for this product, so you should verify the exact amount per serving on the label.
How it works
Think of calcium as a structural builder for your skeleton and a signal controller for your nerves and muscles. It helps deposit minerals into bone tissue and allows your muscles to relax after contracting [NIH ODS]. Without adequate calcium, your body may pull it from your bones, weakening them over time.
Safety profile
FDA received 592,059 total adverse event reports across all supplements. For calcium specifically, high intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. High blood and urine 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 absorption of bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Check the label on your NOW Tri-3D Omega bottle for the exact calcium content. If you already get calcium from food or other supplements, adding more may exceed safe limits. Do not take this product within two hours of thyroid medication or antibiotics to avoid absorption issues [NIH ODS]. For most adults, aim for a combined total from food and supplements of no more than 2,000–2,500 mg daily, but data on the exact upper limit for this specific product is not available.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | NOW |
|---|---|
| Serving Size | |
| Contents | 180.0 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