The following sources to help with your project:

CDC Nutrition for Everyone: info on basic nutrients

 

Nutrition A-Z: Harvard School of Public Health

 

MedlinePlus: food and nutrition topics page, National Institutes of Health

 

USDA Food and Nutrition Information Center: dietary guidelines page

 

Nutrition.gov – What’s in Food: nutrients except water

 

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Search words: human nutrition

I know everyone loves Google. If you do a Google search, please do an intelligent one. Type this into the search box: site:.gov key words

 

Examples:

site:.gov carbohydrates

site:.gov nutrition water

 

This will give you nutrition information from government health sources.