Catherine, Duchess of Cambridge
Kate Middleton is pictured arriving at the Cridge Centre for the Family on Oct. 1, 2016 in Victoria, Canada. Getty Images

People typically try to turn over a new leaf every new year and in many cases, that means achieving weight loss and creating healthy lifestyles. Several stars live by certain diets in order to lose weight for projects or for their own personal preference. Check out some celebrity diet plans worth trying out in 2017 below:

Dukan

The Dukan diet, used by Catherine, Duchess of Cambridge before her 2011 wedding, is designed to change your eating habits permanently rather than for a short period of time. The diet that Kate Middleton onced followed works in four phases: attack, cruise, consolidation and stabilization. The attack phase consists of strictly eating high proteins foods that will result in noticeable weight loss while the cruise phase adds vegetables to your diet and helps you achieve your true weight. The consolidation phase will help so you do not regain the weight that you lost and re-introduces forbidden foods into the diet, even allowing two celebratory meals a week. The stabilization phase is the rest of your life, turning this diet into your lifestyle.

Weight Watchers

Oprah Winfrey
Oprah Winfrey follows the Weight Watchers diet plan. She is pictured attending the OWN Network’s ““Queen Sugar”” premiere on Aug. 29, 2016 in Burbank, California. Getty Images

Oprah claims she has lost more than 40 pounds while on Weight Watchers. The diet plan works on a SmartPoints system that gets valued depending on the calories, sugar, protein and more. Participants are not limited to particular foods but are encouraged to exercise and keep an open mindset. People on Weight Watchers can expect to lose one to two pounds a week.

Atkins

Kim Kardashian
Kim Kardashian follows the Atkins diet to lose weight. The reality star is pictured attending the MTV Video Music Awards on Aug. 28, 2016 in New York City. Getty Images

Kim Kardashian credited the Atkins diet with helping her lose almost 70 pounds after giving birth to her second child Saint West. The diet limits carbohydrates and sugars so participants can successfully lose weight and keep it off. This method helps the body burn fat and steadily keeps you energized, which curbs cravings and lessens hunger.

5-Factor

Megan Fox
Megan Fox uses the 5-Factor diet to lose weight. The actress is pictured attending the Underground Event Screening of "Teenage Mutant Ninja Turtles" on Oct. 5, 2014 in Berlin, Germany. Getty Images

Stars like Megan Fox and Lady Gaga follow the 5-Factor Diet when the are looking to shed a few pounds. The plan is all about following the number five. Five meals a day consisting of five elements that take no longer than five minutes to make along with five days of exercise per week. The diet encourages three meals and two snacks and requires no calorie counting and it also allows one “cheat day” a week so all your hard work is rewarded.

Zone

Jennifer Aniston
Jennifer Aniston wants to star in a TV show. Pcitured: Jennifer Aniston at the premiere of “Storks” on Sept. 17, 2016 in Westwood, California. Getty Images/Jon Kopaloff

Followed by Jennifer Aniston, the Zone Diet not only helps to lose excess weight, but it also helps you live a longer life by improving your physical and mental performance. The plan, which is believed to slow down the rate of aging, encourages participants to fill their plates with proteins, fruits, vegetables and a dash of healthy fat like almonds or avocado.