A new coffee diet claiming to help lose weight and improve IQ is gaining a major following in the United States — and raising eyebrows among doctors sceptical of its benefits.
Dave Asprey, the founder and CEO of the “bulletproof diet,” pulls no punches when making claims for his radical health recipe, cup of coffee in hand.
“You become a better employee, better parent, better friend, better person,” said the former Sil-icon Valley entrepreneur, now living in Canada. “My energy changes, my brain changes. I can pay attention, I can follow through.”
The cornerstone of Asprey’s diet is a drink called Bulletproof Coffee, a modified version of the caffeinated beverage which uses beans stripped of mycotoxins — essentially mold that forms during the fermentation process.
Add to that butter from grass-fed cows and medium-chain triglycerides oil. The ingredients are blended together to produce a creamy, naturally sweet beverage a bit like a milkshake, taken at breakfast in lieu of a meal.
“So you drink a couple of these and all of a sudden you don’t care about food for a very long time,” said Asprey. “Your brain has energy that doesn’t come from sugar, you didn’t want sugar in your coffee and you lose the craving and you sort of have freedom.”
Asprey used to weigh 300 pounds, and spent much of his life battling to lose weight.
The coffee diet idea came to him during a trip to Tibet in 2004. He was weak with altitude sickness while travelling in the mountainous region — until he drank yak butter tea. Asprey was so impre-ssed by the energetic effect of the drink that he tried to reproduce it at home.
After years of trying all kinds of ingredients and combinations, he unveiled a patented formula in 2009 through his blog and on social media, claiming the coffee and an associated health regimen helped him attain a “body-builder” physique.
Better our body Asprey’s diet is now one of the most popular in the United States, where a third of the population of some 320 million is obese.
And his modified coffee has become the first link in an empire that includes the New York Times bestselling book, The Bulletproof Diet.
In addition to people looking to lose weight, it attracts athletes and supporters of “biohacking,” a movement that combines biology and food technology to improve physical and mental capacity.
“Me and my wife are in the fitness industry, so we are trying to do things that better our body,” said Justin Lovato, a burly personal trainer.
Past the hit of morning coffee, the method advocates a diet free of gluten and sugar that draws around half of its calories from “healthy fats” such as MCT oil, 20 percent from protein — preferably grass-fed meat and dairy or wild caught seafood — and the rest from organic fruit and vegetables.
Other foods are classified as “bulletproof”, “suspect” or “kryptonite” according to how they fit into the diet’s categories and meals are taken on a set schedule.
A young athlete who gave his name as Ray said drinking the coffee every morning “increases your energy levels for sure.”
“You don’t feel sleepy anymore, you don’t have the crash I would say after 20 minutes. Its effects are longer” than any of the products he has tested before,” Ray added.
Asprey also advocates brief bursts of high-intensity exercise, with a focus on allowing the body to recuperate with food and sleep.
Where are the nutrients Several celebrities have publicly lauded the benefits of the “miracle drink,” like actress Shailene Woodley — protagonist of The Divergent Series saga — and comedian Jimmy Fallon.
But experts have raised an alarm over the diet’s nutritional value.
The British Dietetic Association listed the “bulletproof” method among its top 10 celebrity diets to avoid for 2016 — along with such questionable fads as the “all kale and chewing gum diet.”
“Un-bull-ieveable!” was its verdict. “Whilst the idea of minimising alcohol and processed food is positive, the classification of foods is at odds with health recommendations and lacks evidence.”
UCLA medical centre nutritionist Amy Schna-bel said the diet could work short-term.
“Initially, any diet that has you restrict large food groups does result in some weight loss,” she said. She also said the diet’s popularity was understandable — whether or not it is rooted in actual health benefits.
“Coffee is a good source of antioxidants and it has caffeine. That would make any of us feel good,” said Schnabel, “whether it is black or loaded with cream.”
