Holy basil leaves, also known as Tulsi leaves, have a wide range of Ayurvedic benefits. Here are some of the benefits:

1. Respiratory health: Holy basil leaves are beneficial for respiratory health and can help with conditions such as cough, cold, asthma, and bronchitis.
2. Stress and anxiety: Holy basil leaves have adaptogenic properties, which means they help the body cope with stress and anxiety. They can also help improve mental clarity and promote relaxation.
3. Digestive health: Holy basil leaves can improve digestion and help with conditions such as bloating, flatulence, and constipation.
4. Immunity: Holy basil leaves have immunomodulatory properties, which means they can help boost the immune system and protect against infections.
5. Skin health: Holy basil leaves can help with various skin conditions such as acne, eczema, and psoriasis. They have anti-inflammatory and antimicrobial properties that can help soothe and heal the skin.
6. Blood sugar levels: Holy basil leaves can help regulate blood sugar levels and may be beneficial for people with diabetes.
7. Liver function: Holy basil leaves can support liver function and help with conditions such as fatty liver disease.
8. Cardiovascular health: Holy basil leaves have antioxidant and anti-inflammatory properties that can help protect against cardiovascular diseases.

9. Anti-inflammatory: Holy basil leaves have anti-inflammatory properties that can help with conditions such as arthritis, joint pain, and other inflammatory conditions.
10. Anti-cancer: Holy basil leaves contain compounds that have anti-cancer properties and may help prevent certain types of cancer.
11. Anti-microbial: Holy basil leaves have antimicrobial properties that can help protect against bacterial, viral, and fungal infections.
12. Oral health: Holy basil leaves can help improve oral health and prevent conditions such as bad breath, gum disease, and mouth ulcers.
13. Menstrual health: Holy basil leaves can help regulate menstrual cycles and reduce menstrual cramps.
14. Vision health: Holy basil leaves contain compounds that can help improve vision and protect against age-related eye diseases.
15. Anti-aging: Holy basil leaves have antioxidant properties that can help protect against aging and oxidative stress.

Holy basil leaves can be consumed in various forms such as tea, fresh leaves, or in Ayurvedic formulations. However, it is important to use holy basil leaves under the guidance of a qualified Ayurvedic practitioner, as they may interact with certain medications or have adverse effects in some people.