Knowledge
What are Polyphenols and Flavonoids?
Polyphenols, widely distributed in almost all plants, play a crucial role in health. They are divided into two main groups: Phenolic acids and flavonoids. These phytonutrients are known for their antioxidant properties and offer protection against cardiovascular disease as well as potentially preventing certain types of cancer.
Phenolic acids, mainly found in fruits and vegetables as cinnamic and benzoic acids, contribute to heart health and protection against certain types of cancer. Flavonoids, the most common polyphenols, act as plant pigments and have antioxidant and sometimes hormone-like effects. The best-known flavonoids, such as quercetin, are found in onions, and genistein in soybeans. Citrus flavonoids like hesperidin and rutin are increasingly valued for their health functions.
Regular intake of fruits and vegetables rich in polyphenols is associated with a reduced risk of cardiovascular disease and certain cancers. Additionally, polyphenols strengthen blood vessels, the immune system, protect against age-related vision problems, and help alleviate symptoms of hay fever, sinusitis, and asthma.
The polyphenol content varies depending on the plant variety, climate, and harvest time. Field-grown plants generally contain higher levels of polyphenols than greenhouse-grown plants. In these plants, polyphenols are particularly concentrated in the leaves and outer tissue layers. Many flavonoids remain heat-stable during cooking.
We consume several grams of polyphenols in our daily diet, mainly through the consumption of fruit and vegetables. Flavonoids, in combination with vitamin C, improve the absorption of the latter into the body. The intake of polyphenols is generally considered safe, and side effects are rarely known. However, a healthcare professional should be consulted when using polyphenols to treat diseases.
In summary, polyphenols are crucial to a healthy diet and offer a wide range of health benefits, from boosting the immune system to protecting against chronic diseases.
Phenolic acids, mainly found in fruits and vegetables as cinnamic and benzoic acids, contribute to heart health and protection against certain types of cancer. Flavonoids, the most common polyphenols, act as plant pigments and have antioxidant and sometimes hormone-like effects. The best-known flavonoids, such as quercetin, are found in onions, and genistein in soybeans. Citrus flavonoids like hesperidin and rutin are increasingly valued for their health functions.
Regular intake of fruits and vegetables rich in polyphenols is associated with a reduced risk of cardiovascular disease and certain cancers. Additionally, polyphenols strengthen blood vessels, the immune system, protect against age-related vision problems, and help alleviate symptoms of hay fever, sinusitis, and asthma.
The polyphenol content varies depending on the plant variety, climate, and harvest time. Field-grown plants generally contain higher levels of polyphenols than greenhouse-grown plants. In these plants, polyphenols are particularly concentrated in the leaves and outer tissue layers. Many flavonoids remain heat-stable during cooking.
We consume several grams of polyphenols in our daily diet, mainly through the consumption of fruit and vegetables. Flavonoids, in combination with vitamin C, improve the absorption of the latter into the body. The intake of polyphenols is generally considered safe, and side effects are rarely known. However, a healthcare professional should be consulted when using polyphenols to treat diseases.
In summary, polyphenols are crucial to a healthy diet and offer a wide range of health benefits, from boosting the immune system to protecting against chronic diseases.
Artemisia annua, also known as Qinghao in traditional Chinese medicine, is a plant that bridges ancient wisdom and modern medical research. First mentioned around 168 BC during the Han dynasty, this plant is now cultivated worldwide and is valued for its numerous medicinal applications. It grows up to 3 meters tall and features striking yellow flowers, making it popular as an ornamental plant as well.