Plant Extracts & Spices

Black cumin oil is obtained from the seeds of Nigella sativa. New randomized studies examine different oils and special extracts, among other things for seasonal allergy, sleep problems, metabolic markers and knee osteoarthritis. The product form is important: the dose and the content of thymoquinone – one of the most important constituents studied – differ in some cases considerably. Results for a standardized extract therefore do not automatically apply to every black cumin

Image: AI Ashwagandha, botanically known as Withania somnifera, is a plant whose root has long been used in Ayurvedic tradition. Modern supplements usually use standardized root extracts. Important compounds in ashwagandha include withanolides. Ashwagandha is often discussed in relation to stress, sleep, calmness, resilience and hormone-related topics. The word adaptogen means that a plant is traditionally used to help the body deal with stress. In research, the exact extract

Image: AI When people think of blueberries, they usually think of the fruit first, but the leaves also contain interesting plant compounds. Tea can be made from the leaves, and some studies focus specifically on fermented blueberry leaf tea. Fermentation means that plant material is processed in a controlled way, which can change flavor and the compound profile. One important compound in blueberry leaves is hyperoside, a polyphenol from the flavonoid group. Polyphenols are se

Celery seeds are typically studied as a standardized preparation. This update summarizes the key findings on blood pressure and metabolic markers and explains what the data mean in practice.