The Vitamin Shoppe Vitamin B2 100 mg

Our assessment

The evidence shows that Vitamin B2 (riboflavin) at a 100 mg dose is a well-established supplement for supporting energy metabolism. This amount is significantly higher than the RDA, but data on its specific benefits is limited to general biochemical function [NIH ODS].

How it works

Think of Vitamin B2 as a key cofactor — it helps your body convert food into energy by supporting enzymes involved in the metabolism of carbohydrates, fats, and proteins. It also plays a role in maintaining healthy red blood cells [NIH ODS].

Safety profile

Data not available. The FDA adverse event report data for this specific product is not provided. However, high doses of riboflavin are generally considered safe because the body excretes excess amounts in urine, which may cause a harmless bright yellow discoloration [NIH ODS].

Our recommendation

Data not available. Because specific study data on the 100 mg dose for this brand is not provided, we cannot make a targeted recommendation. For general health, the RDA for riboflavin is 1.1-1.3 mg daily for adults, which is easily obtained from a balanced diet [NIH ODS].

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