The semi-sugar free diet
Aside from weight loss, reducing sugar has a whole host of health benefits, including boosting immunity and reducing the risk of developing type 2 diabetes and chronic diseases such as cancer. Plus, your energy levels will improve, your skin will clear and that 3pm brain fog will be a thing of the past. Sounds pretty good to us!
Actress Eva credits a semi sugar-free diet for her improved sleep. "I do a sugar cleanse every 30 days or so," she says. "Sugar is terrible ... It's not easy to get away from it!"
The pegan diet
Since a classic vegan diet is dominated by veges, legumes and wholegrains, weight loss is often a side effect, as these foods are naturally low in fat. Research also shows vegans have a reduced risk of developing heart disease and some cancers.
Kate recently confessed following a vegan diet had done wonders for her skin. "When I went vegan, my skin was the best it's ever been – skin tone, pores, everything!"
The raw food diet
fruit and veges, fermented foods, nuts, seeds and occasionally raw dairy, meat, fish or eggs. Trouble is, eating raw all day can be hard, so try the "raw 'til 4" rule and enjoy a cooked dinner.
The theory is that raw food contains more nutrients and essential enzymes, which cooking can destroy. Plus, raw colourful veges are high in antioxidants and polyphenols, which reduce inflammation, boost digestion, improve cardiovascular health and fight premature ageing.
Uma is a raw foodie and the Duchess of Cambridge reportedly eats raw a few days a week.
Lots! Research shows the more red meat we eat, the higher our risk of cardiovascular disease. Red meat is also linked to inflammation (the cause of almost all chronic disease).Celeb fans
Gwyneth considers herself a vege-vore, while Anne Hathaway switched from full to part-time vegan, explaining, "I just didn't feel good, not healthy or strong."
The gluten-free foodies
Ditching gluten is one of the best ways to beat the bloat. By choosing veges over carb-heavy breads, your digestion will improve. Lots of foods containing gluten are sugary too – think cakes, cookies and pastries. Remove these from your diet and your waistline will thank you.
Hollywood star Jessica credits forgoing gluten for helping her keep up with her young son. "My digestion is better, I feel better, I have more energy," she says.