Is Cutting Out Carbs A Good Way To Lose Weight


Is cutting Carbs the key to losing weight? The answer might surprise you.

The question of whether carbohydrates and weight loss can coexist is one that has been debated by nutritionists and dietitians for decades now. Nutrition experts, doctors and personal trainers, generally fall into two opposing camps when it comes to this subject. Is cutting carbs the key to losing weight? Depends who you ask. While some nutritionists would agree that decreasing carbs will help you slim down, others would recommend including a regular intake of carbs so you stay healthy overall.

Is Cutting Carbs the Key to Losing Weight?

Is Cutting Carbs the Key to Losing Weight?

We all know moving the number on the scale requires seriously watching our bread, pasta and pastry intake. A diet too high in carbohydrates — even complex carbs like whole-wheat bread, sweet potatoes and beans — could make it harder to lose weight, according to a recent study.


New research published in BMJ found overweight and obese participants who followed low-carb diets (less than 20% of calories) consumed fewer calories, lost more weight and maintained their weight loss better than those who followed other, higher carb diets.

“Conventional treatment of obesity considers all calories alike. To lose weight, just eat less and move more,” explains Dr. David Ludwig, co-director of the New Balance Foundation Obesity Prevention Center at Boston Children’s Hospital and a professor at Harvard Medical School. “The problem is, this advice rarely works over the long term because the body fights back against calorie deprivation. On a typical low-calorie diet, hunger predictably increases and metabolism slows.”

Ludwig wanted to test whether some diets made it easier to lose weight and maintain weight loss. He assigned 164 overweight participants to one of three diets with 20%, 40% or 60% carbohydrates. Those on the lowest carbohydrate diet burned 250 more calories per day than those on the higher carbohydrate diets while eating the same number of calories.

“These findings show that all calories are not alike to the body and that restricting carbohydrates may be a better strategy than restricting calories over the long term,” Ludwig says.


Carbohydrates break down into sugar. Your body needs those sugars as fuel for energy, but consume too many carbs without expending the energy to burn them off, and your blood glucose levels will be chronically elevated, increasing the risk of diabetes and insulin resistance, according to Jessica Cording, MS, a dietitian, health coach and founder of Jessica Cording Nutrition.

Simple carbohydrates such as white bread, pasta, pastries and crackers are especially problematic because they break down quickly, causing sharp spikes in blood sugar and subsequent crashes that leave you feeling weak and cranky. In contrast, complex carbs such as whole-grain bread, sweet potatoes and beans break down more slowly, providing a more sustained energy release.

“It’s very easy to overdo it on carbohydrate portions, especially simple carbs, because they don’t fill us up in quite the same way,” Cording says. “It’s better to pair a complex carbohydrate with protein and fat — like a peanut butter sandwich on whole-grain bread — to help slow the digestive process so you can avoid the sharp sugar spike and crash.”

Ludwig also advocates swapping refined grains and starchy vegetables for slow-digesting carbohydrates like fruits, nuts, legumes and minimally processed grains such as steel cut oats and quinoa.


Changing your diet to include no more than 20% of calories from carbohydrates requires some willpower. (The general population, Ludwig estimates, gets upwards of half of their daily calories from carbs). Unlike the ketogenic diet, which limits carbs to a mere 10% of daily calories, a low-carb diet still provides the flexibility to have some whole fruits, legumes, limited amounts of grain products and even a touch of sugar, according to Ludwig.

If calculating the percentage of calories from carbohydrates feels too overwhelming, Cording offers this advice: Fill 1/2 your plate with non-starchy vegetables, 1/4 of the plate with protein and 1/4 of the plate with complex carbohydrates — and don’t be afraid to make some exceptions.

“The biggest mistake people make when it comes to carbs is trying to avoid them altogether,” she says. “When you feel deprived, your willpower breaks down and you end up bingeing on carbs and feeling awful. Everything in moderation.”

What You Should Know Before Cutting Carbs for Weight Loss

Low-carb, no-carb, slow carb? We take a close look at the research on carbs and weight loss.

Carbs have long been viewed as an enemy to weight loss, but that doesn’t mean you have to cut them out of your diet completely. If you know which carbs to eat, and how often to consume them, research has shown they can actually help you shed some pounds.

At the same time, there is ample evidence to support that reducing carbs in one’s diet—most notably simple or refined carbs—will have a huge impact on weight loss.

Before you embark on a lower-carb, low-carb, or no-carb diet, there are at least six important things you should to know—and we’re here to share them with you. And if you’d like to remove some carbs from your diet, you’ll certainly enjoy these 22 Genius Tips To Cut Carbs, According to Experts.

You should know how many carbs to eat per day

pasta salad

If you’re looking to whittle your middle, it’s important to closely monitor the number of carbs you eat per day.

According to the Dietary Guidelines for Americans, carbs should make up 45-65 percent of your daily calorie intake.

If you want to follow a low-carb diet, a Nutrition, Metabolism, and Cardiovascular Diseases study says you want to aim for less than 45 percent of your calories are carbs.

If you’re consuming 2,000 calories a day and looking to try out a low-carb diet, that means you should be eating less than 225 grams of carbs daily, or roughly 45 grams of carbs per meal if you’re eating three large meals and two snacks a day.

Registered dietitian and certified personal trainer Jim White, RD, ASCM and owner of Jim White Fitness Nutrition Studios, takes it a step further and defines a low-carb diet as one that consists of less than 125 grams of carbs a day. Still, it’s also important to remember that ideal carb intake can vary from person to person since factors such as age, gender, and level of physical activity all impact the number of carbs you should eat in order to promote weight loss.

You need to pay attention to your body’s reaction to cutting carbs

Depressed woman awake in the night, she is exhausted and suffering from insomnia

While paying attention to the number of carbs you’re consuming is crucial, White is also an advocate for taking note of how cutting back on carbs makes you feel. In other words, the goal is to hit a sweet spot of fuel that leaves you energetic, not sluggish. “A lot of people drop their carbs but also drop other macronutrients such as protein and fat,” White explains to Eat This, Not That! “This can cause many deficiencies, slow down metabolism, and decrease energy levels impacting overall health.

You should know how cutting carbs can help you lose weight

Woman refusing to eat bread

It is true that cutting carbs can help you lose weight: one Annals of Internal Medicine study examined the effects of a low-carbohydrate diet compared with a low-fat diet. After one year, the low-carb dieters lost more weight than those in the low-fat group. The low-carb dieters also had less fat mass as well as greater increases in HDL (“good”) cholesterol than those on the low-fat diet.

On the other hand, other studies, such as one conducted by Stanford researchers, have found no discernable difference between low-fat diets and low-carb diets.

While it remains to be seen if one diet is actually healthier than the other, the health benefits associated with at least cutting back on carbs are indisputable. For starters, eating fewer carbs automatically reduces the number of calories you’re consuming on a daily basis, which forces your body to burn fat stored around your midsection for energy, rather than the sugars it takes from carbs.

Going easy on the carbs also cuts your risk for diabetes since simple carbs are made of simple sugars. A carb cutback may also flatten your belly since you are now filling your body with more protein, fat, and other nutrients. And that’s just the beginning.

You should prioritize cutting out ‘bad’ carbs.

white bread

Refined carbs are a weight loss foe. Simple carbs, as they are called, (such as soda and white bread) can spike blood sugar and accelerate hunger pangs, meaning they are more associated with weight gain as opposed to weight loss.

To use carbs to your advantage (and to lose weight in the process) monitor your daily carb intake carefully, and favor complex carbs over the simple ones.

You should know what carbs are better for you to eat

High fiber breakfast whole grain oatmeal with fresh berries nuts and seeds

Even though a certain amount of carbs are permitted on a low-carb diet and can still be eaten if you want to lose weight, the kinds of carbs you eat matters almost as much as how many carbs you consume. Generally speaking, stick to complex carbs to shed pounds since they are better at keeping your blood sugar in check.

Complex carbs are found in whole grains, legumes, and vegetables, and are referred to as “dietary starches” that steadily release energy. These carbs are likely so successful as it relates to weight loss because many of them are also excellent sources of satiating fiber and/or protein. Specific examples of complex carbs include: whole grain bread, quinoa, spinach, carrots, apples, berries, and oats.

In fact, whole grains are such a star that researchers at Tufts University discovered that those who ate three or more servings of whole grains per day had 10 percent less belly fat than those who ate the same amount of calories from refined, white carbs.

You should know that sometimes it’s best not to give up all carbs

healthy weight loss foods

Though giving up carbs entirely may seem like the ideal solution, they are your body’s preferred source of energy. In other words, you need a certain amount of them to survive and thrive. Giving up carbs cold turkey means you’ll also be missing out on other important nutrients such as belly-blasting fiber, and it also means you’ll have less energy to engage in healthy activities such as exercise. If you’ve been following a low-carb diet, see if you’re exhibiting any of these signs you’re not eating enough carbs.

Even though low-carb diets can be associated with weight loss, no-carb diets can lead to weight gain. How exactly does that work, you ask? If there’s an absence of carbs in your diet you’ll likely fill the void by eating too much fat and protein. Both macronutrients, though beneficial to your overall health, still have calories. Fat, in particular, has 9 calories per gram, explains White, which is nearly double the 4 calories per gram of carbs and protein.

Last but certainly not least, a complete lack of carbs has an adverse and destabilizing effect on your blood sugar, which has been shown to lead to weight gain. When you eat food, your body breaks the digestible carbs down for energy, which causes your blood sugar levels to rise and your pancreas to produce insulin. However, when your blood sugar is low, the body begins to crave high-sugar junk foods in order to replenish its energy stores.

According to researchers in India, balancing your blood sugar may even prevent the onset of type 2 diabetes. To keep your blood sugar in check, try combining a complex carb with a protein and a little healthy fat. For more healthy snacks that will keep the weight off without denying you crucial carbs, take a look at this list of the best low carb snacks!

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