dude....you have been mislead by these companies and stores trying to sell their products by tagging them as organic food. 
every food you eat is organic, you WON'T find a food item that is not genetically modified. everything you get in the market is modified in some way and engineered food products are not bad, in fact, they are better (more nutrients and/or better taste)

i'd suggest you to eat more fruits and vegetables, and cut down consumption of meat. eat natural sources of carbs (like rice) instead of fast food items like pizza, chips, and burgers. 
avoid soda, beer, and other high glucose containing drinks as much as possible.

i eat daal, bhaat, tarkari always (except once in a while when school kicks by butt real hard), and eat fruits and eggs quite a lot. 
i eat meat once in 2 weeks or so and avoid fast food items (i've been in the States for 2.5 years and still haven't gone to McDonald's even once!)

You don't have to spend a big buck to stay healthy, just buy normal groceries, "organic" is just a buzz word (to attract customers).