Vitamin World Mega B-100
Brand: Vitamin World · Form: CAPSULE [E0159]
Our assessment
Our assessment: The evidence shows that Vitamin World Mega B-100 is a B-complex supplement providing high doses of B vitamins. Data not available for specific clinical studies on this exact product. The general benefits of B vitamins are well-documented for energy metabolism and nervous system function [NIH ODS].
How it works
Think of B vitamins as a team of coenzymes — they help your body convert food into cellular energy and support red blood cell formation. Each B vitamin has a specific role, from B12 for nerve health to B6 for protein metabolism [NIH ODS]. Mega B-100 provides 100 mg or 100 mcg of most B vitamins, which is far above the Daily Value [NIH ODS].
Safety profile
Data not available for adverse event reports specific to Vitamin World Mega B-100. High-dose B vitamins can cause side effects such as a harmless but alarming bright yellow urine from riboflavin. Niacin (B3) at 100 mg may cause flushing, itching, or tingling [NIH ODS]. B6 at high doses over long periods has been linked to nerve damage [NIH ODS].
Our recommendation
Start with a lower-dose B-complex unless you have a diagnosed deficiency or increased need. Mega B-100 is best for specific conditions like pernicious anemia or under medical supervision. For most people, a standard multivitamin provides adequate B vitamins without the risks of mega-dosing [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Vitamin World |
|---|---|
| Serving Size | |
| Contents | 200.0 Rapid Release 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