Christina Aguilera's recent weight loss has given her a new lease on life.

The 'Your Body' hitmaker, who recently lost 30 pounds, has revealed she feels completely ''refreshed'' after taking some time off to look after her son, Max, and get back in shape.

Speaking at a press conference for 'The Voice' USA in Los Angeles on Thursday (07.11.13), the singer told ''It's a lot of stagnant energy sitting in a chair for three years in a row. I got to have, finally, a break and spend some time with my son ... being able to breathe and have time away outside of the camera and get to the nitty-gritty of all things real and personal [allowed me to come] back refreshed.''

The 32-year-old star reportedly banned ''dairy and carbs'' from her diet to lose weight.

A source recently said: ''Her diet plans has been built around very small portions and very high-energy training for short periods of time, but frequently.

''Banned are dairy and carbs. On the agenda is a lot of coconut water, herbal teas, tofu, celery, oily fish and small amounts of low fat cheese.

''But the major key to this is only hand size portions of every meal and five small meals a day.''