Beth recently became a vegetarian. The doctor suggested Beth eat more peas and beans to ensure she gets all of the nutrients she needs. Which element might the doctor be trying to help her get more of?

Peas and beans are rich in protein. Proteins contain nitrogen, an element the body needs to build and repair tissues. So the doctor may be encouraging Beth to eat them to get more nitrogen; carbon and phosphorus are not the best match for this clue.

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