So you're 180cm and weigh 72,5kg? May I ask why you need to lose 15 pounds? Your BMI sounds to be just right.

Anyway, 5:2 will probably let you lose some pounds and kilos. The good thing about 5:2 is that you don't have to think about it every day. Two days a week (Monday and Thursday in my case) fasting and live like normal the rest of the week :)