Life Extension Buffered Vitamin C Powder
Brand: Life Extension · Form: POWDER [E0162]
Our assessment
Our assessment: Based on the data provided, this supplement contains calcium. The evidence shows that calcium is essential for bone mineralization and neuromuscular relaxation [NIH ODS]. However, you should be aware that the data does not specify the exact calcium dose per serving in this powder, which is critical for safe use. You should not assume this product provides the same amount as a standard calcium supplement.
How it works
Calcium acts as a master regulator for your body's structural framework. It supports bone density and mineral deposition, which is vital for maintaining strong bones as you age. Additionally, it supports muscle relaxation and nerve signaling, helping your muscles and nerves communicate effectively [NIH ODS].
Safety profile
FDA received 592,059 total adverse event reports across all supplements. 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]. Data not available on the specific number of calcium-only adverse event reports.
Our recommendation
Our recommendation: Start with caution. Because the exact calcium content per serving is not listed in the data, you should first verify the label on your specific bottle. You should also be aware that calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. If you take any of these medications, take your calcium supplement at a different time of day. Consult your healthcare provider before starting this supplement to ensure it is right for you.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Life Extension |
|---|---|
| Serving Size | |
| Contents | 454.0 Gram(s) 1.0 lb 16.0 oz. |
| 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