Madonna poses backstage at the 2015 iHeartRadio Music Awards on March 29, 2015 in Los Angeles, California.
Kevin Mazur/Getty Images for iHeartMedia
Musicians love to drop weight fast, sometimes by any means necessary. So Billboard asked David Allen of David Allen Nutrition in Woodland Hills, Calif., who has worked with Zac Efron and Janet Jackson, to weigh in on some current (and crazy) diets.
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Clay Cleanse
What it is Consuming negatively charged bentonite clay, which can be served in juice form, supposedly helps detoxify the body by expelling positively charged toxins.
Reported devotees Shailene Woodley, Zoe Kravitz (pictured)
Allen says “It will make you feel full, but for those with pre-existing conditions, it can be bad because it alters the ability of your digestive tract to absorb some nutrients.”
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The Werewolf Diet
What it is Also called the Lunar Diet, you only drink water and juice during the full moon or new moon. The theory is that the moon’s gravitational pull on the water in our bodies can affect weight.
Reported devotees Madonna (pictured), Demi Moore
Allen says “This is a weird fad diet, yet strict restrictions to one’s diet do result in weight loss. This could work — though unrelated to the moon cycles.”
Bulletproof Coffee
What it is A 450-calorie cup of coffee mixed with grass-fed butter, coconut and palm kernel oil for breakfast suppresses hunger and promotes weight loss of a pound per day.
Reported devotees Rick Rubin, Ed Sheeran (pictured)
Allen says “One pound a day is an overstatement, but the ingredients are a great combination to improve metabolism and brain health.”
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Pea Protein
What it is Drinking protein shakes made with pea powder, a rich source of protein and arginine, helps build lean muscle.
Reported devotees Taylor Swift BFF Jaime King (pictured)
Allen says “It has a much higher percent of protein per serving than other vegan options and unlike soy is easily digestible, but the flavor and texture can be unappealing.”
This story originally appeared in the May 30 issue of Billboard.