Rice fermented with the *Monascus purpureus* yeast produces red yeast rice, a source of monacolins. Monacolin K is chemically identical to lovastatin, a prescription statin. People take it to help keep cholesterol numbers in a healthy range and support cardiovascular wellness.
You will find it as capsules or tablets. Taking it alongside a meal improves uptake and often minimizes stomach upset.
Because it supplies a natural statin, side effects can include muscle discomfort or shifts in liver enzymes. It interacts with grapefruit and other statin drugs. Skip it if you are pregnant or breastfeeding.