I'd say that's not enough. I looked at your profile,and you're male. That doesn't even look enough for a female. I'd feel hungry all day on that.
Have an omelette for breakfast,protein(beans,pulses,quorn,eggs,fis
h,cheese,tofu)
and veg/salad for lunch and dinner,a handful of nuts/seeds as a snack,yogurt and berries as an after for the evening meal. Make sure you eat enough so that you are pleasantly full-if you can eat 3 good meals without snacking-even better. Eat real,unprocessed food...avoid protein bars,etc....they are rarely clean food.
Also-regarding weight loss....how much do you need/want to lose? If you are near your natural weight,you are unlikely to lose much.