BulkSupplements.com Zinc Glycinate
Brand: BulkSupplements.com · Form: POWDER [E0162] On Market
Our assessment
The evidence shows that calcium is essential for bone health and nerve function, but the data on high-dose supplementation raises important safety questions. For most adults, meeting the RDA through diet is the safest approach, and supplements should only be used if you cannot get enough from food [NIH ODS].
How it works
Think of calcium as a structural building block for your skeleton — it supports bone mineralization and density. It also acts as a nerve and muscle regulator, helping your muscles relax and your nerves transmit signals properly [NIH ODS].
Safety profile
FDA received 592,059 total adverse event reports across all supplement categories. For calcium specifically, high intakes may increase the risk of heart disease and prostate cancer. High blood and urine calcium levels 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] [FDA data]. Calcium can also reduce the absorption of bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Focus on getting calcium from food sources first. If you need a supplement, keep your total intake (food plus supplement) below the tolerable upper limit. Take calcium with food and separate it from medications listed above by at least two hours. Always consult your doctor before starting, especially if you have kidney issues or a history of heart disease [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | BulkSupplements.com |
|---|---|
| Serving Size | |
| Contents | 500.0 Gram(s) 17.6 Ounce(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