Lovebirds eat seeds, silver beets, broccoli, corn and chick weed. These birds are also capable of eating: snow peas, apples, bananas, leaves, grass, roots, fruits and flowers. They should however be given supplements to boost their immunity.
When feeding your lovebirds you want to be sure to give them everything they need to stay healthy and stay away from foods that are harmful. As a responsible owner you want to be sure to give them a good quality mix of seeds, fruits and vegetables. You can find more information here: http://www.lovebirds.co.nz/general_care/feeding.php
Lovebirds have a varied diet. They can eat fruits, grains, cereals, edible flowers, and more. Be sure to check the food carefully, things like avocados and some leaves are toxic to lovebirds. You can find more information here: http://en.wikipedia.org/wiki/Lovebird#Diet