lysine
lysine — noun
1. a substance found in foods such as meat, eggs, and beans that the human body nee
a substance found in foods such as meat, eggs, and beans that the human body needs for growth and for keeping bones strong
Takeshi eats eggs and chicken every day to get enough lysine in his diet.
collocation: get enough lysine / source of lysine
Lysine is found in beans, nuts, and meat, as Evelyn learned from her doctor.
passive: lysine is found in [food group]
People who follow a vegan diet need to find good plant-based sources of lysine.
Lysine helps Imani's body build proteins for strong bones and muscles.
Roya takes a daily lysine supplement because she does not eat much meat.
用法筆記
Lysine is an uncountable noun — it is not used with 'a' or in plural form. You can say 'some lysine' or 'a source of lysine' but not 'a lysine' or 'two lysines' when referring to the substance in general.