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Limonin is a phytonutrient found in most citrus fruits. Natural sources of limonin include oranges, grapefruits, lemons, and limes. Within the fruit it is attached to a sugar and the combined molecule is called limonin glucoside.

Orange Peel

The good news is limonin has shown to have exceptional health benefits in humans and other animals. It seems to be able to help reduce the development and growth of cancers. It also has the effect of lowering cholesterol in the blood stream.

Amazingly, there are no limonin dietary supplements. Even so, the substance is available in mass quantities in cattle feed. As a by-product of the citrus industry this chemical is derived from the seeds and skins of citrus fruits. It is often used as a form of insect control in agriculture.

The way limonin functions in the human body is not yet well understood. Most of the studies have focused on end results. What is known is that both in vitro or in vivo limonin has proved to exhibit anti-viral, bactericidal, and anti-fungal properties.

Limonin has shown few side effects. However, like any good thing, too much could have a detrimental effect. If there is a drawback to limonin it is its taste. The substance when separated from the sugar in its glucoside form is bitter. It has long been a concern of manufacturers of citrus juices.

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