Dr. Mercola Vitamin B12 Energy Booster Natural Blackberry Flavor
Brand: Dr. Mercola · Form: LIQUID, SUPPLEMENT FORM [E0165]
Our assessment
Our assessment: The evidence shows that this product contains Calcium, a mineral essential for bone health and nerve function. However, we must be clear: the specific benefits for "Vitamin B12 Energy Booster" as named are not supported by the ingredient data provided. The primary ingredient data we have is for Calcium, not vitamin B12. For general health, calcium supports bone mineralization and neuromuscular relaxation [NIH ODS].
How it works
Think of calcium as a builder and messenger. It helps deposit minerals into your bone matrix to keep your skeleton strong, and it supports the relaxation of muscles after they contract, which is critical for normal nerve signaling and heart function [NIH ODS].
Safety profile
Safety profile: High calcium intakes may increase the risk of heart disease and prostate cancer. High levels in 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]. The FDA has received a total of 592,059 adverse event reports across all supplement categories, though specific report counts for this exact product are not available [FDA data].
Our recommendation
Our recommendation: If you are considering this product for energy, note that the data provided does not confirm it contains vitamin B12. For calcium needs, ensure you do not exceed the tolerable upper intake level from all sources (diet and supplements). Be aware that calcium can reduce absorption of medications like bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Always discuss with your doctor before starting any new supplement, especially if you take prescription medications.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Dr. Mercola |
|---|---|
| Serving Size | |
| Contents | 0.85 fl. Oz. 25.0 mL |
| 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