assuming you've been cleared by your primary health care provider to exercise you should be ok to simply eat a well-balanced diet that includes fresh vegetables and fruits lean protein whole grains and healthy fats (like olive oil). be sure to stay well-hydrated by drinking plenty of water too. also remember that it takes time to build up to high intensity cardio training. no beginning exerciser immediately has the stamina to run a marathon. for some people 10 minutes of cardio is enough to begin with. you'll gradually work up to longer and more intense sessions. i suggest you visit the webmd fitness & exercise community and support group where you can ask questions of others and get support on maintaining a healthy lifestyle! take care!
what foods do i have to eat to have enough strenght to do a lot of cardio?