They are too many diet out there, many of them does’t work at all.
So what are the top 10 worst diets for fat loss?
The increasingly popular carnivore diet requires eating mostly meat (along with some eggs and fat, like cheese). There’s also a popular version that involves eating only beef. Although you can find carnivore dieters’ success stories online, don’t even think about it, says Gorin: “This is not a healthy or sustainable diet, and there are healthier ways to lose weight.”
“Not only is the carnivore diet extremely high in saturated fat, which can put you at risk for increased cholesterol levels, it also leaves out a lot of foods that are really good for you,” Gorin says. That includes fruits and veggies, which are known to promote weight loss and help fight disease.
Bottom line: Avoid this diet — or if you’re determined to try it, be sure to run the idea by your healthcare team and get their take first.
2.The Baby Food Diet
Why It’s Nuts: “Baby food is basically pureed fruits, vegetables, and meats,” says Sharon Palmer, author of Plant-Powered for Life. “So there’s no real reason why eating baby food would help you lose weight.”
On top of that, a baby food diet is unsustainable, says Palmer. When food is liquefied, the body doesn’t pick up fullness cues, which can make you feel hungrier after eating a sufficient amount of calories, she says.
Better Move: Eat in a way that you could sustain for the rest of your life without feeling miserable, says Palmer. Practicing common-sense portion control, mindful eating, and eating more minimally processed plant foods such as whole grains, beans, vegetables, and fruits, which are rich in nutrients and low in calories should get you to your goals.
Restriction is the name of the game when it comes to the alkaline diet. Based on the concept that eating more alkaline foods, and shunning foods that make your body produce acid, will vastly improve health, this diet requires cutting out entire food groups. Meat, dairy, caffeine, alcohol, and anything that could be deemed sugary or processed are banned from your plate.
While the emphasis on fresh produce and healthy foods like seeds and nuts is great, it isn’t an easy diet to follow. There’s no science backing up the alkaline diet’s claims that it will perfectly balance your pH levels. That’s something your body already does naturally (and efficiently), so there’s no need to drastically change your diet for the sake of your pH.
There’s nothing wrong with the foods that Whole30 asks you to eat, like fresh fruit and veggies. In fact, proponents of the plan say that focusing on whole foods instead of packaged, processed ones may result in weight loss and other health perks, too, like higher energy and improved sleep.
But the Whole30 plan prohibits eating many dietary staples — not just unhealthy foods like added sugar and alcohol, but also legumes, dairy, and grains. And while your body doesn’t need those healthy foods to function, Whole30’s restrictions can make the program difficult to stick with.
Furthermore, those rules can create a cycle of guilt around food, says Anne Mauney, a registered dietitian in Washington, DC. Even if you follow through on the entire 30-day program, at the end you’re likely still going to feel down on yourself for eating what was once deemed “bad.”
Plus, when you go back to eating these foods, “you may likely end up eating more of it than you need or want, because there’s that sort of ‘screw it’ mentality where you’ve already started eating something you ‘shouldn’t’ have, so you might as well keep going. This can often turn into a sort of ongoing restrict-binge cycle over time, where you limit certain foods and then end up overdoing it on those foods later, before going right back to restricting and trying to be ‘good,’” she says. That’s no way to live.
5.The Air Diet
Why It’s Nuts: You hold your empty fork up to your mouth and pretend to eat high-calorie foods instead of giving into cravings, says Rebecca Scritchfield, R.D., author of Body Kindness. It’s easy for most people to see why this one is crazy. It promotes disordered eating and, thanks to a drastic drop in calories, lowers your metabolism and leads to muscle breakdown. It also increases leptin resistance, which crushes your ability to get a sense of fullness when you start eating again.
Better Move: “Your cravings will only increase if you try to avoid eating a specific food, and you’ll end up making a choice you regret,” says Scritchfield. If it’s sweets you crave, fruit will give you a boost of quick energy and hydration. If you’re looking for a tasty snack, try nuts, beef jerky, and hard-boiled eggs, which have a mix of protein and fat and will leave you feeling satisfied, she says.
6.The Military Diet
Often touted as a way to lose 10 pounds in one week, this extreme meal plan isn’t just miserable, it’s also dangerous. With no actual association with any branch of the military, the Military Diet is something that seems to have sprung to life on the Internet. Meals are small, unvaried, and include bizarre combinations. Example meals include “1 cup cottage cheese, 1 hard boiled egg, 5 saltine crackers” or “1 cup tuna, 1/2 banana, 1 cup vanilla ice cream.”
If you want to lose weight quickly, this diet, which researchers designed to help control epilepsy in children, has become a popular way to do so.
But there’s a lack of definitive research proving that keto is safe and effective for the long haul. What we do know is this high-fat, moderate-protein, and very-low-carb diet has a reputation for being challenging, especially if you’re doing it without medical supervision. When you go off the plan, you might gain back all the weight you lost.
What’s more, for all the buzz about the health benefits of keto (for type 2 diabetes, certain types of cancer, Alzheimer’s disease, and more), long-term randomized, controlled trials in humans are lacking, Harvard notes. “Keto restricts foods that help fight cancer and heart disease, like whole grains and legumes,” says Tiberio.
What’s more, there are so many ways to approach keto, and not all of them are healthful. “Though you should be eating a lot of spinach and kale on keto, people generally eat bacon and eggs,” says Tiberio, which leaves out important disease-fighting nutrients, including fiber.
8.The Tapeworm Diet
Why It’s Nuts: This diet requires ingesting a tapeworm, which feeds on the food you’re eating, so you don’t absorb the calories, says Alexandra Caspero, R.D., author of delishknowledge. Eventually (hopefully) the worm will leave your body through your digestive tract. “It’s important to realize that these are parasites and can be very difficult to remove,” says Caspero. There’s also no guarantee that the worm won’t move to other parts of the body, which can lead to severe side effects like weakness, headaches, nausea, and diarrhea. Just no.
Better Move: “Focus on eating foods that are lower in calories and higher in nutrients, like fruits, vegetables, whole grains, and lean proteins,” says Caspero. Those will fill you up for less calories. No tapeworm required.
9.Blood Type Diet
The notion behind the blood type diet is that certain foods react differently with each blood type. In other words, proponents of the diet suggest some foods might be healthy for one blood type, while causing severe damage to another. Type A dieters must go vegetarian, type O has to stick with lean meats and fresh produce, and type B is required to avoid a random assortment of foods including chicken, tomatoes, sesame seeds, and peanuts.
The main negative of the diet is its complex rules and that it requires many blood types to cut out healthy, everyday ingredients. Developed by a naturopathic doctor, there’s no scientific evidence (despite several studies) that the blood type diet is effective when it comes to health or weight loss.
Of course, the Atkins diet was the original low-carb diet, made popular decades ago. Now that keto is on the scene and there’s a general carb phobia, you may be thinking again about going on a low-carb diet like Atkins. (Atkins and keto differ in that Atkins allows for more protein, whereas keto limits protein.)
“Like many diets, you lose weight quickly on Atkins. But it does not work long term,” says Tiberio. On the U.S. News rankings of best diets, Atkins falls near the bottom because of worries about safety and negative impact on heart health.