Fennel, which has the scientific name Foeniculum vulgare miller, or its essence, is widely used around the world in mouth fresheners, toothpaste, desserts, antacids, and in various culinary applications.Apart from the uses of fennel already mentioned, there are numerous medicinal uses and health benefits, mainly due to the components of its essential oils, which are summarized below.According to the USDA National Nutrient Database for Standard Reference, fennel bulb is a source of energy, vitamin C, dietary fiber, potassium and other essential minerals like calcium, phosphorus, and sodium.Vitamin C improves general immune system health, produces and repairs skin tissues, helps form collagen, and protects the blood vessel walls as an antioxidant against the harmful effects of free radicals that can frequently lead to heart diseases.Some of the components in the fennel essential oil are probably the stimulants as they encourage secretion of digestive and gastric juices, reduce inflammation in the stomach and intestines, and facilitate proper absorption of nutrients from the food.Fennel is also commonly found in medicines that treat abdominal pain, diarrhea, irritable bowel syndrome (IBS), and other intestinal issues.This means that it can stimulate the elimination of damaging LDL or bad cholesterol, which is a major factor in heart diseases, atherosclerosis, and strokes.It shows that, in animal subjects, the extract can not only inhibit the growth of tumors, thanks to its concentrations of flavonoids, alkaloids, and phenols, but it even has the potential to be chemoprotective against the harmful effects of radiation during cancer treatment.Fennel is a very rich source of potassium, which can be an essential nutrient in our bodies and is vital for a number of important processes as per a report published in the Journal of Hypertension.High blood pressure is connected to a wide range of health issues, including heart attack, stroke, and atherosclerosis.Also, for diabetics, blood pressure issues can make the management of their insulin and glucose levels very difficult and can be the cause of many potentially lethal complications.Potassium, found in high levels in fennel bulbs and seeds, is an electrolyte, which means that it can facilitate increased electrical conduction throughout the body.Also, fennel is a vasodilator, which means more oxygen reaches the brain and neural activity can work at optimal functionality.Fennel is helpful in curing diarrhea caused by bacterial infections, as it may have some components such as anethol and cineole which may have disinfectant and antibacterial properties.Fennel being rich in many nutrients including vitamin C helps boost the immune system and protects the body against infections and damage caused by free radicals.Furthermore, fennel is used in a number of consumer products to reduce the effects of PMS, and it is also used traditionally as a soothing pain reliever and relaxing agent for menopausal women.This is due to the abundance of antioxidants (vitamin C and amino acids like arginine are very beneficial for rejuvenation of tissues and the prevention of aging), detoxifiers, and stimulants.By protecting against this destruction of the pigment cells, fennel can safely be classified as effective in eye health for numerous reasons.Fennel is useful in respiratory disorders such as congestion, bronchitis, and cough due to the presence of cineole and anethole, which are expectorant in nature, among their many other virtues.Fennel seeds and powder can help break up phlegm and prompt loosening of the toxins and buildup of the throat and nasal passages for elimination from the body to ensure quick recovery from respiratory conditions.Certain components of the fennel essential oil such as anethol, and a few other chemicals present in the plant itself can be dangerous if ingested in too large a quantity