By now you’ve seen the photos of superstar singer Adele and her trim new figure she debuted in 2019, but do you know how she lost all of that weight? It wasn’t weight loss surgery or liposuction. Turns out, she adhered to a very strict, very specific diet created by a team of British food scientists to lose over 100 pounds. The diet is called the “sirtfood” diet, and as you’ll see, it doesn’t offer much in the way of cheat meals — but chocolate and red wine IS allowed!
The sirtfood diet (sirtfood isn’t a real word, but rather shorthand for a certain type of protein) garnered tons of buzz a few years ago, rising to the seventh-most searched term on Google in 2019. It originated in the UK from nutritionists Aidan Goggins and Glen Matten, who published a guide and a recipe book in 2016.
The diet focuses on sirtuins, or proteins in the body that especially affect cellular health and metabolism, among other things. Sirtuins are abundant in foods like kale, extra-virgin olive oil, buckwheat, matcha, blueberries, and arugula. Coffee is also allowed on the diet, as is the aforementioned wine and chocolate. Meat, however, is not a sirtuin, so plan on ditching the steaks if the sirtfood diet sounds appealing to you.
Do we recommend the sirtfood diet?
At 247Health, we openly advocate for whole foods, sustainable diets, and regular exercise. A hyper-restrictive diet like this one WILL help you lose weight, no doubt. But sticking to it might be tough; it all depends on your goals and your willingness to experiment with your body.
The diet’s co-writer Matten told the New York Post years ago that his eating plan can help drop seven pounds in one week. That’s a flashy claim. But it’s no cake walk: for the first three days, eaters restrict their food intake to just 1,000 calories per day (one sirtuin-packed meal and two green juices). That calorie number gets bumped up to 1,500 for the following four days (an additional meal is allowed during days 4-7). After that initial week, dieters are allowed to eat as many meals as they like, as long as they only contain sirtfoods. Unsurprisingly, daily exercise is also recommended on the diet.
Caloric restriction plus meals restricted to whole foods will undoubtedly cause weight loss, so it’s no surprise Adele went from severely overweight to trim and fit on the sirtfood diet.
Our only concern is that by cutting out animal proteins, you are leaving your body susceptible to natural atrophy in many forms. Vegetarians and vegans may disagree, but plant protein just doesn’t stand up to animal protein in our opinion, for a multitude of reasons.
If you want to look like Adele, by all means, give the sirtfood diet a shot for a few weeks and see how you feel. But before you decide to cut out animal protein for good, make sure to do the necessary research so you’ll know what to expect in terms of energy and focus.