Cassia (Cinnamomum cassia), a close relative of cinnamon, is known for its warm, spicy aroma and strong flavor. Native to China and Southeast Asia, cassia has been used for centuries in traditional medicine and culinary applications. Its essential oil is highly concentrated, and only small amounts are needed to enhance recipes or blends. In cooking, 1-2 drops of cassia essential oil can be used as a substitute for cinnamon in pies, breads, and desserts or as a standalone spice in savory dishes. Due to its intense potency, it should be used sparingly. While cassia is recognized for its aromatic and culinary benefits, research on whether cassia essential oil retains the same digestive and metabolic effects as whole cassia bark is still limited.

Cassia is also commonly used for immune support and seasonal wellness. Many essential oil practitioners recommend taking 1-2 drops in a veggie capsule to help support the immune system, particularly during seasonal changes. Some preliminary studies suggest that cassia contains antimicrobial properties, but more research is needed to determine its direct impact on immune function. Additionally, combining cassia with lemon essential oil in a glass of water is thought to aid digestion and curb hunger cravings, though scientific validation on cassia oil’s role in appetite suppression remains inconclusive. While cassia essential oil may offer digestive support, it is highly concentrated and should always be diluted properly before ingestion.

Cassia’s bold, warming scent makes it a popular choice for diffuser blends, particularly in fall and winter. Just one drop blended with citrus oils or paired with clove and ginger can create a cozy, inviting atmosphere. Some believe that diffusing cassia may also help support respiratory function, but further studies are needed to confirm these benefits. While cassia essential oil has strong antimicrobial and aromatic properties, its direct effects on digestion, immune support, and respiratory health require additional scientific validation. Nevertheless, cassia remains a versatile and powerful essential oil for culinary, aromatic, and occasional wellness applications.