Saponins are naturally occurring plant glycosides; which is to say they are phytochemicals — chemicals found in plants. They possess soap-like qualities and produce a lather when mixed with water.

Over one hundred families of plants contain saponins and there are more than eleven classes of saponins including dammaranes, tirucallanes, lupanes, hopanes, oleananes, taraxasteranes, ursanes, cycloartanes, lanostanes, cucurbitanes, and steroids. It’s believed many other varieties of saponins remain

The word saponin is derived from sapo, Latin for “soap.” True to its name, the root of the Saponaria, or soapwort plant, has been traditionally used as soap. undiscovered.

Saponins offer tremendous health benefits. Studies have shown they may support the immune system, promote normal cholesterol levels, and support overall wellness.

Why Are Saponins Beneficial?

Saponins have a unique chemical structure that produces foam when mixed with water, just like a detergent. And, also like detergent, saponins can bind with water as well as fats and oils. This means that, in the digestive tract, saponins produce an emulsification of fat-soluble molecules. Specifically, saponins bind to bile acids and help eliminate them from the body, preventing cholesterol from being reabsorbed. You might even say saponins “wash away” various toxins.

What Are the Health Benefits of Saponins?

The unique chemical structure of saponins allows them to offer a number of prospective health benefits. It’s believed saponins have a favorable effect on cholesterol, can help boost the immune system, have an antioxidant effect, and may even support bone strength.

Saponins and Cholesterol

Saponins seem to help promote normal cholesterol levels. The body uses cholesterol to produce the bile necessary for digestion. Saponins bind with bile and prevent cholesterol from being reabsorbed back into the bloodstream; rather, it’s simply excreted. Many cholesterol medications operate in the same way.

The cholesterol-lowering effect of saponins has been known for decades. A 1977 animal study found that saponins may reduce cholesterol absorption. A separate study found that giving a certain saponin extract to rats with high cholesterol reduced “bad” (LDL) cholesterol without affecting “good” (HDL) cholesterol.

Saponins Boost the Immune System

In nature, plants rely on saponins as a mechanism to fight parasites. Similarly, when consumed by humans, saponins provide a similar defense against harmful organisms. One study demonstrated this action against Candida cells, specifically. In another study, a specific type of saponin was observed to have antimicrobial activity that favorably influenced oral health. The ability of saponins to act as a broad, frontline shield reduces the burden on the immune system.

Saponins and Cancer

Saponins have several qualities that act against cancer cells. In particular, some saponins have an antioxidant effect and may be directly toxic to cancer cells.

Cancer cell membranes have cholesterol-type compounds. Like cholesterol, saponins are able to bind with these compounds and disrupt the proliferation of cancer cells. According to an article published in the Journal of Nutrition, saponins from soybeans may slow the growth of cancer cells. Other studies have reported saponins have induced the death of cancer cells and slowed tumor growth.

It’s important to realize that most of the research into the effects of saponins on cancer cells has been preliminary and involved specific enzymes, proteins, or other components of saponins extracted in specific ways and matched against specific cancer cells under specific situations. In other words, it’s not quite as simple as eating a handful of soapberries and thinking it will cure cancer.

Other Health Benefits of Saponins

Investigations into saponins have yielded a number of other, interesting revelations about their qualities. Preliminary research from a 2010 study concluded that saponins from Terminalia arjuna (arjun tree) may offer a therapeutic benefit for kidney or urinary stones. In a 2015 issue of Natural Products Research, it was noted that, in the past ten years, several preclinical reports have suggested that saponins may offer hope as a natural solution for depression.

Other positive qualities of saponins include supporting Kupffer cells in the liver and encouraging normal detoxification. Saponins found in oats and spinach support digestion by accelerating the body’s ability to absorb calcium and silicon. In animal studies, saponins have been found to promote balanced blood sugar and support normal bone density.

Where to Find Saponins

Saponins are a component in over a hundred different types of plants and foods including beans, chickpeas, peanuts, quinoa, and soy. Saponins exist in nightshade vegetables like tomatoes. Herbs like ginseng, , jiaogulan, bupleurum root, osha, specials in Tribulus terrestris.

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