Asparagus is an edible plant from the Asparagaceae family. It is a highly nutritious vegetable that has become a staple part of many household diets.1 Asparagus comes in the varieties: green (American and British), purple (French) and white (Dutch and Spanish).2 3 Asparagus is native to Europe, northern Africa and western Asia.3
Many studies have been conducted on asparagus health benefits. Researchers have discovered that asparagus contains over 100 different phytonutrients, including flavonoids, phenolic acids and organic acids.1
Asparagus also contains vitamins A, B6, C, E and K, folic acid, fiber, magnesium, calcium, copper, thiamine (vitamin B1), riboflavin (vitamin B2) and niacin (vitamin B3).3 Asparagus is also low in fat, sodium and cholesterol.2 With such an excellent nutritional profile, there are plenty of important asparagus health benefits, including:1 2 3
There are few asparagus side effects when eaten in regular food amounts. However, asparagus should not be taken in higher amounts for medical purposes as there is not enough research to prove if it is safe. Anyone with sensitivities to garlic, onions, leeks or chives may experience asparagus side effects such as allergic reactions. Some people report that their urine smells strange after eating asparagus, but this is a harmless side effect.3
Possible comfrey leaves side effects may include allergic reaction, such as hives, difficulty breathing, or swelling.6 Consult your healthcare provider if you experience nausea, tiredness, loss of appetite, upper stomach pain, dark urine, or jaundice (yellowing of the eyes or skin) as these may be signs of serious liver problems.6 Talk to your doctor to see if a comfrey herbal ointment is right for you.