Jennifer Lopez careful about her diet

London: Popstar Jennifer Lopez has a healthy attitude in life by not delving into certain foods and instead allowing herself the occasional treat.

The singer-and-actress, famed for her perfectly curvy figure, likes to keep her diet varied to maintain her enviable body, a magazine reported. "Just like anybody I try to watch what I eat - there`s no big science to it, which is what sucks. One of the good tricks is to have a goal - for me it may be getting in shape for a video shoot. The other is portion control. I love to eat everything and you pretty much can - a little piece of something fattening is not going to kill you. It`s when you eat the whole box that it`s going to kill you," Lopez said. The 41-year-old singer insists she has never worried about being a size zero and has always been confident about her sexy curves. "I was always very comfortable with who I was. I`ve never looked at myself in a negative way," Lopez said. PTI