The blueberry (Vaccinium myrtillus, Vaccinium corymbosum) is a small, nutrient-rich berry native to the forests and moorlands of Europe, North America, and northern Asia. It belongs to the heath family (Ericaceae) and has been valued since ancient times as both a food and a healing plant. The wild European blueberry (Vaccinium myrtillus) differs from the cultivated varieties by its stronger color, more intense flavor, and higher content of beneficial compounds.

In folk medicine, blueberries are known for their antioxidant, astringent, and digestive properties. Fresh berries are used to strengthen eyesight, circulation, and immune function, while dried berries and blueberry tea are traditional remedies for diarrhea and inflammation of the mouth and throat. Key nutrients include vitamin C, vitamin K, manganese, anthocyanins, and flavonoids, which support cellular protection and vascular health.

From an Ayurvedic viewpoint, the blueberry is a cooling fruit with a predominantly astringent and sweet taste. It pacifies Pitta and Kapha and may slightly aggravate Vata in excess. Due to its cooling and purifying nature, it helps balance excess heat in the blood (rakta shodhana) and supports liver and skin health. Blueberries are recommended in Ayurveda for their rejuvenating and detoxifying benefits (rasayana effect), best consumed ripe, fresh, and in moderate quantities to maintain harmony in digestion and doshic balance.