Bitter Melon

Consult your diabetes care team before starting any nutritional supplement. Blood glucose levels should be checked more often to determine the effectiveness of the supplement or if a medication change is needed.

Supplement of the Month

| Feb 1, 2005

Bitter melon (Momordica charantia) is also known as bitter gourd, bitter cucumber, bitter apple, karolla and karela.

Bitter melon is a member of the Cucurbitaceae family and is related to honeydew and Persian melon, cantaloupe, muskmelon and casaba. Bitter melon is a vegetable cultivated and eaten in many parts of the world, including India, Asia, Africa and South America.

Bitter melon grows on a vine with green leaves and yellow flowers. The fruit has a bumpy exterior, resembling a cucumber, and the interior is yellow-orange. There are many varieties of bitter melon, ranging in color from creamy white, golden, pale green to very dark green. Green melons are the ones most often seen in the United States. Some varieties are only a few inches long with very pronounced bumps; others are much larger with smoother, less-defined bumps.

The fruit and seeds of bitter melon are thought to be useful for diabetes.

Some Ingredients May Lower Blood Glucose

Bitter melon contains several chemical ingredients, including the glycosides momordin and charantin. Polypeptide P, charantin and vicine are the specific components thought to have blood glucose-lowering effects.

Other possible mechanisms in diabetes include increased tissue glucose uptake, liver and muscle glycogen synthesis, inhibition of enzymes involved in glucose production and enhanced glucose oxidation.

Cautions About Bitter Melon

Bitter melon should be used with caution by young women of childbearing age since it may induce menstruation and inadvertently cause abortion if the woman is pregnant.

There is no information about its use in lactating women, so it should be avoided.

Children should not use bitter melon because serious adverse effects have occurred, including hypoglycemic coma.

There is no traditional dose of bitter melon since different forms are in use, including juice, powder, vegetable pulp suspensions and injectable forms.

Few studies have evaluated using bitter melon in the treatment of diabetes.

The largest study, published in a 1999 issue of the Bangladesh Medical Research Council Bulletin, used an aqueous suspension of bitter melon vegetable pulp in 100 patients with type 2. The authors evaluated the effect at one hour after bitter melon was administered and then two hours after a 75-gram oral glucose tolerance test.

The average blood glucose was 222 mg/dl, which was lower than the previous day’s two-hour value of 257 mg/dl.

In another study, published in a 1981 issue of the Journal of Natural Products, bitter melon was prepared as an injectable “plant insulin” and injected into five patients with type 1 and six patients with type 2. There was a control group of six patients 6 with type 1 and two patients with type 2 who did not receive any bitter melon.

In type 1s, average glucose decreased from 304 to 169 mg/dl four hours after injection; this effect was maintained at six and eight hours after injection.

In the type 2 patients, there was no significant decline in blood glucose from baseline.

Side Effects of Bitter Melon

The major side effect of bitter melon is gastrointestinal discomfort.

A syndrome called favism, or hemolytic anemia, has occurred in people taking bitter melon. It is characterized by headache, fever, abdominal pain and coma. The red coating around the seeds have been reported to cause vomiting, diarrhea and death in one child.

When bitter melon is combined with sulfonylureas, hypoglycemia can occur.

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Posted by Anonymous on 14 June 2008

Bittermelon, cinnamon, cloves, ginseng work magic

Posted by Anonymous on 10 May 2010

My Mother is diabetic Type 1, and I am looking for an alternative way, and thought I should give it a try as I read positif comment on Bitter Melon, what is the required dosage as a tablets supplement please?

Posted by Anonymous on 3 April 2011

My husband has Type 2 Diabetes. Someone told him to try Bitter lemon for 1 month & see the difference. How much should he have a day & how do you prepare it? Can someone help?

Posted by Anonymous on 13 June 2011

I just started taking bitter melon yesterday. I have Type 2 diabetes and it hasnt broke 200 for the last two months. I woke up this morning with 159. I feel great. No stomach problems so far. I took 1 capsule at noon and 1 before bed. very pleased.

Posted by Anonymous on 16 December 2011

it works very good try it out;

Posted by Anonymous on 18 September 2014

I don't understand about some of the warnings here on bitter melon, specifically targeted agaisnt kids and women. I would believe if they can only prove this with valid data.

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