Antioxidant Effect of Aged Garlic Extract

A Randomized, Double-blind, Placebo Controlled, Crossover Study to Evaluate the Antioxidant Effect of Aged Garlic Extract in Heavy Smokers

This is a randomized, double-blind, placebo controlled, crossover study to determine the antioxidant effect of aged garlic extract. This study will also compare the oxidative status in heavy smokers with that in non-smokers.

Inclusion Criteria:

• Smoking (at least 20 cigarettes per day) or non-smoking (more than 20 years)

Exclusion Criteria:

• Under medication for chronic disease
• Garlic allergy
• Engaging in vigorous exercise
• Taking drugs or functional food that may possess antioxidant property
• Participation in any clinical trial within 90 days of the commencement of the trial
• Renal or hepatic dysfunction
• Heart disease