Metabolism is a contributing factor in a person’s ability to lose or weight gain. Metabolism is made up of complex hormones and enzymes that change the food we take into fuel. It also has an effect in the efficiency of fuel burning. As you age, your metabolism slows down. You can bring up your metabolism through exercise.
Does that bolded sentence say that metabolism (It) has an influence on whether the fuel is burnt well or badly?
Top answer
Hi, Yes, that's the idea. an effect on , not an effect in. Clive
— Clive
Hi, Yes, that's the idea.
an effect on , not an effect in.
Clive
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