Rainbow Light Everyday Calcium
Brand: Rainbow Light · Form: TABLET [E0155] On Market
Our assessment
The evidence shows that calcium is a foundational mineral for bone health, but the data also reveals important safety considerations. Our assessment is that Rainbow Light Everyday Calcium can be a useful supplement if you have a confirmed need, but it is not for everyone. The key is to match your intake to your dietary needs and be aware of potential risks [NIH ODS].
How it works
Calcium acts as a master regulator for your body. It supports bone mineralization, helping to build and maintain strong bone density. It also plays a critical role in neuromuscular relaxation, which is essential for proper muscle function and nerve signaling [NIH ODS]. Think of it as the material your body uses to keep your skeleton and nervous system running smoothly.
Safety profile
The FDA has received a total of 592,059 adverse event reports across all supplements, though specific report counts for calcium alone are not provided. The data shows that 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 [FDA data] [NIH ODS].
Our recommendation
Start by assessing your current calcium intake from food. Do not exceed the tolerable upper intake level without medical supervision. Be aware that calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Our recommendation is to take this supplement only if you have a documented deficiency or inadequate dietary intake, and to consult your doctor about potential interactions with your medications.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Rainbow Light |
|---|---|
| Serving Size | |
| Contents | 120.0 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