In less time than it takes to tell about it, I went to snopes.com and typed in "Army cutting back to two meals a day in Afghanistan" and TA DA, got a result that said it was bullshit. (In the comment I just posted the link to what I got on snopes.com) In some areas they are cutting out hot breakfast and giving MREs for breakfast. In fact the troops can get up to four meals a day. Lunch and dinner are hot meals and breakfast and midnite chow are MREs.
Now I'm willing to bet whoever started this bullshit was hoping people would blame Obama for starving the troops, but anyone with even a rudimentary knowledge of how government works knows spending and appropriations start in the House. And who controls the House??