Its all about calories. 6 oz of chick and 1/2 cup brown rice 5 times a day is 1440 calories. Life is to short to eat such a limited diet.
You will lose the pounds but also lose muscle.
Take a multi vitamin, lift heavy and eat 200 to 300 calories under your stay even calories.
If you can't imagine staying on a diet for your whole life then why bother. Just eat a balanced diet at around 2000 calories and workout three times a week minimum.
2007 335I sedan (retired)
2010 335xi coupe