Taking vitamin D2 might lower the body's levels of vitamin D3 – the more efficient form of the nutrient – according to new research.

The dietary supplement nicotinamide has been recommended by dermatologists for people with a history of skin cancer since 2015, when a clinical study with 386 participants showed that those who took the vitamin B3 derivative developed fewer new occurrences.

Magnesium depletion is associated with an increased risk for overactive bladder, according to a study published online in the journal Scientific Reports.

MiR-93 – a type of RNA found in liver cells – promotes fatty liver disease, but vitamin B3 can counteract its effects. This discovery suggests a new treatment approach.