Soy products are also rich sources of protein, and some vegans and vegetarians eat a lot of soy. (naturalchildmagazine.com)
Many animal products — including meat, eggs and dairy — provide rich sources of protein. (healthyeating.sfgate.com)
As rich sources of vitamins, minerals and other nutrients, fruits can help ensure strong immune function, cardiovascular health and brain function. (healthyeating.sfgate.com)