Evidence supporting the use of: Garlic bulb
For the health condition: Insect Repellant

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Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Garlic bulb has traditionally been used as an insect repellent in various cultures. The pungent odor of garlic, primarily due to its sulfur-containing compounds such as allicin, is believed to deter insects like mosquitoes and ticks. In folk practices, garlic cloves have been placed near sleeping areas, rubbed on skin, or hung in homes to ward off pests. There are also anecdotal claims that consuming garlic can make a person less attractive to biting insects, though this is largely unsubstantiated scientifically.

Scientific studies on garlic’s efficacy as an insect repellent are limited and show mixed results. A few small-scale laboratory and field studies suggest that garlic extracts may have some repellent activity against certain insects, but the effects tend to be modest and short-lived compared to commercial repellents like DEET. For example, topical formulations containing garlic oil have shown slight repellent effects, but not enough to be considered reliable for protection against disease-carrying insects. Moreover, the strong odor and potential for skin irritation limit its practical use.

In summary, while garlic’s use as an insect repellent has deep traditional roots, scientific validation of its efficacy is limited and weak. For significant protection against insect bites, especially in areas with disease risk, proven repellents are preferable.

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