"If you are drinking lots of fluids, these liquids will fill you up and send a regulatory hormone to your brain that tells it that you aren't hungry, which could mean you eat less," Zeratsky explains. "Also, if you're well-hydrated, your body won't confuse hydration with being hungry which could also lead to consuming less...But, ultimately, a balanced diet and exercise are the most important."
Oolong tea is rumored to have some weight-loss benefits, but Ansel says there hasn’t been much evidence to back this up. One study published in the American Journal of Clinical Nutrition in 2013 found that oolong and other teas didn’t have a clinically meaningful outcome on weight loss. As for roobois tea, Ansel says it hasn’t been studied as much as other varieties, "but there’s no convincing evidence that it has any real impact on appetite.”
How it works: Intermittent fasting requires you to eat within a certain window of time and fast during the rest. There are several different methods for intermittent fasting, some of which are more restrictive than others. The 16:8 method, for example, requires you to eat within an 8-hour window and fast for 16 hours. You would only eat two meals a day, for example, your first meal starting at noon and your last around 8 p.m.
Jeni S., a 31-year-old mom of two and group fitness instructor, first discovered cleanse diets after talking with a fellow fitness instructors. "I was complaining to her about my post-holiday bloat and she recommended I try a cleanse to 'flush' it all out and sort of reset everything." On her friend's recommendation, Jeni started with the Shakeology Jumpstart Cleanse—"a nutrient rich, calorie restrictive cleanse designed to help rid your body of undigested food and other toxins." She adds, "The goal is to get as many nutrients with as few calories as possible."