Life Extension Buffered Vitamin C Powder
Brand: Life Extension · Form: POWDER [E0162]
Our assessment
The evidence shows that this product provides calcium, a mineral essential for bone health. However, the data indicates that high calcium intakes may carry risks, so you should be careful with your total daily intake from all sources [NIH ODS].
How it works
Think of calcium as a building block for your skeleton. It supports bone mineralization and density through a process of mineral deposition, and it also helps with muscle relaxation and nerve signaling [NIH ODS].
Safety profile
Data not available for this specific product. However, for the ingredient calcium, high levels 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]. Some research also suggests that high calcium intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. The FDA has received 592,059 total adverse event reports across all supplements, but a specific count for this product is not available [FDA data].
Our recommendation
Start by assessing your total daily calcium intake from food and other supplements. Be aware that calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. We recommend consulting your healthcare provider before adding this to your routine, especially if you take any of these medications or have a history of kidney issues [NIH ODS].
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