(Cover) - EN Star Style - Jennifer Anistons trainer has praised the actress for her strong willpower.

The 42-year-old movie star is famed for her athletic frame, and famously partakes in activities such as yoga to maintain flexibility and core muscle strength.

According to yoga guru Mandy Ingber, Jennifer has a healthy attitude to diet, and although she never deprives herself of her favourite treats, she does know when to stop.

Its everything in moderation, plus Jennifer has a very healthy attitude to food. She knows its not about being good or bad. Its about knowing when to say, OK, Ive had enough.

She also never touches sweets! Mandy told the UK edition of Glamour magazine.

The health expert also divulged that Jennifer has a penchant for some fast food. As well as confirming the stars fondness for spicy South American-themed cuisine, Mandy says the actress sometimes treats herself to a small portion of fries.

Its no secret that Jennifer loves Mexican food. Pizza and French fries, too. But she doesnt over-eat, she added. (C) Cover Media