Tag: Vitamin b2 overdose

As a water-soluble vitamin, any excess riboflavin is not stored in the body but is typically excreted in the urine. Learning what happens when you get too much riboflavin can help you understand the benign changes and potential minor side effects associated with high intake, primarily from supplements.

Overdosing on water-soluble vitamins like riboflavin is extremely rare, as the body cannot store large amounts and simply excretes any excess. But what happens when you take too much riboflavin, and are there any negative side effects to be aware of? This guide will break down the minor symptoms and why this B vitamin is generally considered safe even at high dosages.

According to the National Institutes of Health, a Tolerable Upper Intake Level (UL) has not been established for riboflavin, or vitamin B2, because no adverse effects from high intakes have been reported. However, taking too much vitamin B2, especially from high-dose supplements, can still cause some noticeable, though generally harmless, side effects as your body excretes the excess.

According to nutritional experts, true toxicity from excessive riboflavin intake is extremely rare due to its water-soluble nature. While high doses can cause noticeable side effects, the body's efficient excretion system prevents the harmful build-up associated with other vitamins.

Unlike fat-soluble vitamins, excess vitamin B2 is not stored in the body; it is safely excreted in the urine, making serious toxicity from dietary or even most supplementary intake highly unlikely. However, people often wonder, **what happens when you take too much vitamin B2** from high-dose supplements?