Life Extension Calcium Citrate With Vitamin D
Brand: Life Extension · Form: CAPSULE [E0159]
Our assessment
Our assessment: For supporting bone health, this combination of calcium citrate and vitamin D is a well-researched choice. The data confirms that calcium is critical for bone mineralization and density [NIH ODS]. However, you need to be aware of specific safety limits and medication interactions before starting this supplement.
How it works
The calcium in this supplement works as a master builder for your skeleton, directly supporting bone density and mineral deposition [NIH ODS]. It also plays a key role in neuromuscular relaxation, helping your muscles relax and your nerves signal properly [NIH ODS]. The vitamin D component assists your body in absorbing this calcium efficiently.
Safety profile
FDA received 592,059 adverse event reports across all products. You should be cautious because high calcium 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
Our recommendation: Only use this supplement if you have a confirmed need for additional calcium and vitamin D. Check with your doctor about potential interactions with any medications you take, especially antibiotics or thyroid medication [NIH ODS]. Start with a low dose and monitor for side effects like constipation or nausea [NIH ODS]. Do not exceed recommended intake levels without medical supervision, as high levels carry serious risks [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Life Extension |
|---|---|
| Serving Size | |
| Contents | 300.0 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