Dr. Mercola Vitamin K2 180 mcg
Brand: Dr. Mercola · Form: CAPSULE [E0159]
Our assessment
The evidence shows that the active ingredient in this product is calcium, not vitamin K2 as implied by the product name. For the ingredient calcium, the data supports its role in bone health, but the safety profile requires careful attention. We cannot assess vitamin K2 at 180 mcg because specific data for that ingredient was not provided in the supplied information.
How it works
Think of calcium as a structural building block for your skeleton. It supports bone mineralization and density, and it also plays a role in neuromuscular relaxation and nerve signaling [NIH ODS].
Safety profile
FDA received a total of 592,059 adverse event reports for all supplement products in the database. For calcium specifically, safety concerns include that high intakes might increase the risk of heart disease and prostate cancer. 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]. Calcium can also reduce the absorption of several medications including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Given that the product label states "Vitamin K2 180 mcg" but the only ingredient data provided is for calcium, you should be aware that the actual content and safety of this specific product are unclear based on the supplied information. If you are considering this supplement for vitamin K2, data for that ingredient is not available in the provided materials. For calcium, consult your healthcare provider before starting, particularly if you take any of the medications listed above, and do not exceed the recommended intake without medical supervision [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Dr. Mercola |
|---|---|
| Serving Size | |
| Contents | 30.0 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