Measuring the effect of kava on the liver

In 2003, Germany, Canada, the United Kingdom and other countries banned sales of highly concentrated kava dietary supplements, which had been linked to liver damage and death. A summary report is here.

Now, researchers at the University of Hawaii at Manoa in Honolulu have studied the long-term effects on the liver of drinking kava beverages. Continue reading Measuring the effect of kava on the liver →

Exploring the relationship between depression, diet, and heart disease

Older adults who follow diets high in omega-6 fatty acids and low in omega-3 fatty acids have higher levels of proinflammatory cytokines — especially when they have coexisting symptoms of depression.

It’s important because depression is linked to the development of heart disease — a relationship that appears to be due to increased levels of proinflammatory cytokines (eg, interleukins and tumor necrosis factor alpha). Continue reading Exploring the relationship between depression, diet, and heart disease →

Long-term effects of salt restriction on cardiovascular diseases

Follow-up of adults who participated in the Trials of Hypertension Prevention (TOHP I and II) studies showed that a reduction in salt intake could reduce the risk of cardiovascular events (heart attack, stroke, the need for revascularization of the heart, death associated with these conditions).

Let’s separate the effect of a low salt diet on disease from the risk of dying. Continue reading Long-term effects of salt restriction on cardiovascular diseases →

Ginger to prevent nausea and vomiting after surgery

In a previous entry, the use of ginger to prevent motion sickness was discussed.

Now, an article published in the American Journal of Obstetrics and Gynecology reports that the combined results from 5 randomized trials of more than 300 patients indicate that a fixed dose at least 1 gram of ginger is more effective than placebo for the prevention of nausea and vomiting following surgery. Continue reading Ginger to prevent nausea and vomiting after surgery →

Complementary and Alternative Medicine: Fair, Balanced, and to the Point