Onions: Complete Amino Acid Profile

Onions: Considered a good source of amino acids?

Onions are a good source of amino acids, but not as much as many other vegetables. Onions contain all nine essential amino acids, making them a complete protein, however they have lower levels than some other vegetables such as legumes, nuts and seeds. Onions also contain other essential nutrients including vitamins C, B-6 and thiamin, magnesium, phosphorus, zinc and iron. In addition to containing amino acids, onions may also provide several health benefits due to high amounts of antioxidants, potassium, fiber and sulfur compounds. Eating onion in moderation can be beneficial for heart health, digestion, blood sugar control and inflammation.