Guggul has been recommended for the treatment of arthritis, hypercholesterolemia, nodulocystic acne, and overweight. It is one of the primary therapeutic substances used in Ayurvedic medicine to prevent atherosclerosis, as well as one of the most promising herbs or supplements for the prevention and treatment of this condition. Studies in animals have documented not only the protective effects of guggul against atherosclerosis, but have shown actual regression of the condition in animals that already had it.

The active portion of the plant is the gum resin, which contains guggulsterone, a steroid compound. It appears to be effective in lowering blood levels of both total cholesterol and low-density lipoprotein (LDL) cholesterol. In trials lasting one to three months, cholesterol levels were reduced by 14-27% and triglycerides by 22-30%. These results are equal to or better than those of some conventional medications used to lower cholesterol, but with fewer side effects. There are several hypotheses to account for the effectiveness of guggul in decreasing serum lipids. It may decrease the production of cholesterol in the liver. Excretion of cholesterol and bile acids are increased, so that less fat and cholesterol are absorbed. Guggul also increases the production of thyroid hormones, which lower the levels of serum lipids. The lowering of serum lipids is what consequently decreases the risk of atherosclerosis. One of the most important ways that gugulipid lowers cholesterol may be by stimulating the liver to remove LDLs from the bloodstream. The effect on high-density lipoprotein (HDL) cholesterol is undetermined, as two studies yielded different conclusions. To lower cholesterol, one recommended dose of gugulipid is 100-500 mg taken daily. This dosage contains 25 mg of guggulsterone. It may take a month or so for the full effect to be experienced. Similar doses of gugulipid are used to promote weight loss.

Studies have shown guggulsterone to have approximately the same effectiveness as the antibiotic tetracycline for the treatment of nodulocystic acne. It decreases inflammation and lowers the risk of recurrence of the condition. Guggul is also thought to have astringent, antiseptic, and antisuppurative (preventing pus formation) qualities that lend themselves to the treatment of this severe, and sometimes scarring, form of acne.

Gugulipid is also a component of some combination nutritional products that are being promoted for the support of normal metabolism of cholesterol and triglycerides. Other components may include Phosphatidycholine, inositol hexaniacinate, chromium, and vitamin antioxidants.

Studies in both humans and animals have demonstrated a wide margin of safety and negligible toxicity for guggul, although some cases of liver toxicity have been reported for very high doses. Although it is apparently not toxic to the embryo or fetus either, guggul gum resin should not be used during pregnancy or lactation as it is thought to be a uterine stimulant.

Patients who are taking prescribed medications for heart disease should use caution in taking this herb.

Crude extracts of guggul are more likely to produce side effects than purer products. In the past, effects included loss of appetite, abdominal pain, diarrhea, and rashes. In studies using purer extracts, significant adverse effects have not occurred. Headache and mild nausea are sometimes reported.

 

Guggul can be problematic for people being treated for thyroid conditions. Since guggul stimulates production of thyroid hormone, it may alter the dosage requirements for thyroid replacement medication. It can also reduce the availability and effectiveness of the heart medications propranolol (Inderal) and diltiazem (Cardizem). Patients should consult a health care practitioner before taking guggul along with any other herbs or medications.

References
Lata, S., et al., "Beneficial effects of Allium sativum, Allium cepa and Commiphora mukul on experimental hyperlipidemia and atherosclerosis--a comparative evaluation,"J Postgrad Med (1991), 37(3):132-5.

Abstracts
Lata S et al. Beneficial effects of Allium sativum, Allium cepa and Commiphora mukul on experimental hyperlipidemia and atherosclerosis--a comparative evaluation. Department of Pharmacology, L. L. R. M. Medical College, Meerut, Uttar Pradesh. J Postgrad Med, 1991 Jul 37(3):132-5 Oral administration of petroleum ether extract of Allium sativum, Allium cepa and ethylacetate extract of Commiphora mukul in albino rats significantly prevented rise in serum cholesterol and serum triglyceride level, caused by atherogenic diet. All the three agents were also found to confer significant protection against atherogenic diet induced atherosclerosis.

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