Limonin: Health Benefits in Citrus Fruits

Limonin Molecule

Citrus juice contains a substance called limonin. This long-lasting liminoid is found in the blood stream up to 24 hours after the consumption of citrus fruits. It acts as a cancer fighting agent1. The large quantities of this substance found in oranges, lemons, tangerines, grapefruits, and other citrus fruits promotes healthy living. Limonin comes into the body as part of a sugar molecule. When orange juice or oranges are consumed, the digestive system separates the sugar from the limonin. The limonin then is absorbed into the blood stream and acts as an active anti-oxidant preventing the breakdown of cell DNA.2

Laboratory tests have shown that limonin and liminoids "fight cancers of the mouth, skin, lung, breast, stomach, and colon"3. US Government sponsored research shows that limonin is easily accessed by the body when citrus juice is consumed by humans. Limonin is available in quantities about equal to the amount of vitamin C present in citrus juices.

Limonin is also available in the skin and pulp of oranges, lemons, grapefruits, etc. When orange juice is made, the skin is processed into a cattle feed product called citrus molasses. Pure limonin can be extracted from the molasses and used to fortify foods, and even be used as a supplement.

It is also possible that limonins could reduce cholesterol. Current studies are under way to test this hypothesis. It has already been found that limonins inhibit the production of cholesterol compounds in the liver.

An excellent way to get limonin is to eat citrus fruits or to drink citrus juice. Citrus juicers make fresh juice that has higher concentrations of vitamins than processed juices.

  1. Citrus limonoids Colon Carcinogenesis
  2. Limonin
  3. Citrus Compounds Article on USDA



Extensive Info on Limonin

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