After a Christmas period full of food, alcohol and indulgence, many of us promise that we will try to lose some weight in the new year.
But the rush for fad diets now comes with a warning label, courtesy of the British Dietetic Association (BDA). The organization has published a list of five celebrity-supported diets in 2017 that should be avoided.
Unravels the supposed methodology of diets, suggesting that some "health" tendencies sometimes do more harm than good.
Sian Porter, a consultant dietitian at the BDA, said: "As practicing dietitians, we hear it all when it comes to the latest health and weight loss diets – in fact, if something sounds too good to be true, It probably is. " 19659005] Scroll down to discover five famous diets that have been smashed by the BDA.
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Related Celebrities: Megan Fox, Sting.  What is it? The plan involves a strict diet of raw fruits, vegetables and nuts. The diet is promoted as a cure for obesity and other diseases.
BDE verdict: "A carefully planned vegan diet with the necessary supplements such as vitamin B12 and vitamin D may be healthy, but it is not a guarantee of losing weight." A vegan cake is still a cake , [and] vegan foods often contain the same calories as non-vegan foods.
"The human body can digest and nourish with both raw and cooked foods
there is no reason to believe that raw is inherently better . Raw foods can take a long time to prepare, are difficult to find when eating out, and are not suitable for certain groups such as children or pregnant women, so family meals can be a challenge and hot foods can be lost "
Is it worth it? No. The defiant diet could potentially harm your long-term health, according to the BDA.
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Related celebrities: Tom Brady, Gwyneth Paltrow, Duchess of York Sarah Ferguson.
What is it? The plan states that, by changing the pH levels of foods that consume, can change the pH balance of your blood and produce health benefits.
The BDA verdict: "While encouraging people to eat more fresh vegetables is a good thing, the pH of your food will not have an imp act on the pH of your blood – and you would not want it! Your body is perfectly capable of keeping your blood within a very specific pH range (between 7.35 and 7.45).
"Diet can change the pH value of urine, but […] is not related to the pH of your blood, which can not be affected by diet."
Is it worth it? ? No. Although diet encourages you to get rid of processed foods, which is always good, eating alkaline foods will have absolutely no effect on your overall health, BDA said.
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Related celebrities: Kim Kardashian, LeBron James, Halle Berry, Mick Jagger, Rihanna, Alec Baldwin, Matthew McConaughey, Tom Jones.
What is it? Dieters consume little or no carbohydrates (around 20-50 g per day or 5% of total calories), filling fats and proteins instead.
BDA verdict: "A carefully planned ketogenic diet can be a very effective treatment for people with epilepsy.To lose weight, there is no magic, the diet works like any other, reducing total calories and eliminating the foods that people tend to overeat.
"Initial side effects may include low energy levels, mental fog, increased appetite, trouble sleeping, nausea, digestive upset, bad breath and poor performance in the exercise.
"It may be an effective method of short-term weight loss with careful planning but it is difficult to sustain for many in the long term and most of the initial weight loss that is often seen is associated with water losses / fluid. "
Is it worth it? No. The BDA said that overly restricting any food group is a bad idea and leads to uncontrollable cravings, often causing the weight to accumulate again.
Related celebrities: British MP Keith Vaz urged another 100 parliamentarians to follow the plan during the summer recess of 2017.
What is it? The plan is named after the Italian village that supposedly "founded" the Mediterranean diet, supposedly the healthiest diet in the world.
This intake in the Mediterranean diet contains considerably more fat and less carbohydrates than the typical version. It is recommended to people who consume a lot of vegetables, nuts, legumes and fish, while avoiding red meats, starchy carbohydrates and sweetened sweets.
The BDA verdict: "The authors may be the only people in the history of the planet who have been in Italy and return with a diet that bears the name of an Italian town that excludes pasta, rice and bread, but it includes coconuts, perhaps because they have a low-carbohydrate agenda.
"The suggestion that this Italian village should be associated with cauliflower pizza recipes and rice substitute made of grated cauliflower or anything made with Coconut oil is ridiculous. It also uses potentially dangerous expressions such as & # 39; clean meat & # 39; and encourages people to starve for 24 hours at a time every week. "
Is it worth it? Not this version." While a typical Mediterranean diet is a healthy option, said BDA, this "hijacked" version has some potentially dangerous advice.
Katie Price – Nutritional supplements
AP / Vianney Le Caer / Invision
Celebrities linked: British glamor model Katie Price.
What is it? Supplement and range of food replacement include hydration, breakfast and lunch, and dinner replacements.Sure to support weight loss and muscle tone.
BDE Verdict: "Rapid weight loss can be motivating, but it is unsustainable. Appetite suppressants are also not a healthy, advisable or sustainable way to lose weight. Interestingly, the website admits that its claims have not been evaluated by the competent authorities. "
BDA spokesperson and registered dietitian, Nichola Ludlam-Raine, added:" The sale of supplements, especially protein supplements, is a Easy way to earn money. Whey protein is a fairly cheap ingredient that companies can take advantage of when sold in elegant packaging. "
Is it worth it? No. Although meal replacements are low in calories, the line claims are unsubstantiated.
Business Insider has contacted the representatives of Price for comments.