Vegetables

The sun provides all the energy and thus provides all the nutrients for all

lives to survive on planet Earth. The only species on the planet that could convert the  energy from the sun is the plant. That is the first source of all the nutrients. So if you eat meats, you are consuming a secondhand source of nutrients (the animals had to eat the plants first in order to get the nutrients). So, dumped all the meats and lived a healthy life by just eating plants.

Have  nice day