The truth about green juice and why it probably won’t help you lose weight

What costs £4.99 but can, for a minute, make you feel as if you’ve got up at dawn to do a yoga class? Answer: A Pret Easy Greens juice. Or you may pick up this 70-calorie bottle of coconut water, cucumber, apple, spinach, pineapple, kale, lime and mint along with your bacon and egg roll in the hope of offsetting the damage of a big night out.