Nature's Plus Cal/Mag Citrate
Brand: Nature's Plus · Form: CAPSULE [E0159]
Our assessment
Our assessment: Calcium is a foundational mineral, but you need to be precise with your dosage. For most adults, the RDA is 1,000 mg daily, increasing to 1,200 mg for women over 50 and everyone over 70 [NIH ODS]. The evidence shows that calcium supports bone health and nerve signaling, but more is not always better. You should carefully track your total intake from food and supplements to avoid exceeding safe levels.
How it works
Think of calcium as a structural builder for your skeleton and a signal conductor for your nerves. It supports bone mineralization and density, and it helps your muscles relax and your nerves send signals properly [NIH ODS]. If you don't get enough from your diet, your body will pull calcium from your bones, which can weaken them over time.
Safety profile
Be aware of risks. High calcium intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. Very high levels in your blood and urine 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]. The FDA has received 592,059 total adverse event reports for this product category [FDA data]. It is important to note that calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Start by calculating your daily calcium intake from food. If you are deficient, choose a supplement that provides no more than 500–600 mg per dose to maximize absorption. Take it with food and separate it from any medications listed above by at least two hours. If you take a multivitamin or antacid, check its calcium content to avoid accidental overuse [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Nature's Plus |
|---|---|
| Serving Size | |
| Contents | 90.0 Vegetarian Capsule(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