Answer: Holy basil, also called "tulsi" in Ayurvedic medicine, may help lower blood sugar levels in people with type 2 diabetes and reduce symptoms of stress and anxiety, according to several small preliminary studies using holy basil extracts. However, ConsumerLab's results of tests of popular holy basil supplements raise concerns about quality, as most products failed to contain even the minimum expected amounts of potentially beneficial holy basil compounds. One product was also contaminated with lead. For product-specific details, including our Top Pick for holy basil, and information about the clinical evidence for holy basil, its side effects and potential drug interactions, see our Holy Basil Supplements Review.
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