protein
B2Frequent NGSL-2UK /ˈprəʊtiːn/US /ˈprəʊtiːn/
Meaning
noun
a substance, found within all living things, that forms the structure of muscles, organs, etc. There are many different proteins and they are an essential part of what humans and animals eat to help them grow and stay healthy.
“essential proteins and vitamins”
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essential proteins and vitamins
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