Good vs. Bad Carbs: Which Ones to Avoid (2024)

Many of us have a love-hate relationship with carbohydrates. We love that bagel in the moment, but hate the dip in energy (or breakout!) that follows.

What exactly is a carb? Carbohydrates are all composed of sugar, which can be connected to various health conditions, but our bodies do need carbs (just as they need protein and fat) to get us through the day. However, not all carbs are created equal.

Keep scrolling to learn how to separate the good carbs from the bad ones.

Complex vs. refined carbohydrates

When it comes to carbohydrates, it’s all about quality. The body uses all carbohydrates to produce glucose (also known as blood sugar) to help our organs do their thing and energize us throughout the day. When considering the quality of carbohydrates, the magic lies in how quickly your carb of choice is broken down into glucose. Glucose itself isn’t a bad thing, but getting too much glucose too quickly is when we get into trouble.

Refined carbohydrates like white flour go through a process which removes the “bulk,” such as fiber and other nutrients, from a food. The “simplification” of this food is what causes it to have a sudden effect on your body.

Unlike complex carbs that have fiber to act as a buffer, refined carbohydrates are broken down much faster. The result? All of that glucose hits your bloodstream like a sugar bomb, leading to a burst of energy and soaring blood sugar. In response to this spike, the hormone insulin springs to work, helping the body to store fat and signaling your cells to “store that glucose!” Before you know it, your blood sugar levels have tanked, leading to an energy slump, a crappy mood, and a craving for more sugar.

When rollercoaster blood sugar levels become a part of your daily life, this puts stress on your body, contributes to inflammation, and is correlated to health conditions like diabetes. This stress and inflammation can signal bad things to your hair follicles, getting in the way of the hair growth cycle.

In contrast, complex carbohydrates like whole grains generally pack a higher amount of fiber and a lower amount of sugar. These “nutrient buffers” ensure thatthe breakdown of glucose is more prolonged, allowing your body a more steady flow of energy and avoiding an unpleasant crash.

Carbohydrates, ranked from worst to best

4. THE WORST: Refined or processed carbohydrates

These are carbohydrates like white bread, white sugar, white flour pasta, and white rice that have been stripped of their blood-sugar-buffering fiber, as well as vitamins, minerals, and antioxidants, things both your body and hair are big fans of.

Alternatives: Whole-grain choices like brown rice, whole-wheat pasta and bread (especially breads with nuts and seeds), and pastas made with lentil, chickpea, or other beans. Flour is also available in a variety of more complex-carb forms, such as those made from whole-wheat, amaranth, chickpea, and almond.

Simple carbohydrates have the simplest structure compared to other carbs, meaning they’re broken down quickly by the body. These kinds of carbs — which include white sugar, brown sugar, high fructose corn syrup, concentrated juices, and sodas — have little to no fiber and little to no nutritional value, leading to blood sugar dysregulation. However, simple carbs can also be found in fruits and vegetables, which pack components like antioxidants, vitamins, minerals, and fiber to help slow the breakdown of sugar.

Alternatives: Instead of store-bought juice, try making your own using whole fruits. Swap sugary soda for plain seltzer, water, or drinks made with low-carb, more natural sweeteners like stevia and monkfruit.

2. Starches (complex carb)

Starch is a complex carbohydrate that gets turned into glucose for energy. High-starch foods like pizza, baked goods, and french fries should be avoided or limited, as they have been processed and thus contain less nutrients

Alternatives: Parsnips, quinoa, beans, whole-wheat grains, sweet potatoes, lentils and legumes (like peas). Craving pizza instead of vegetables? Try making your own with whole-wheat dough or even sweet potatoes!

1. THE BEST: Fiber (complex carb)

When it comes to carbs, it pays to be complicated. Put simply, complex carbohydrates have a more complicated chemical structure than other carb forms —and they take more time for the body to break down. Their high fiber content, found in whole grains, beans, nuts, and veggies like broccoli, is also key. During the digestive process, soluble fiber combines with water and turns into a gel-like goop, supporting healthy digestion and in turn assisting your gut flora; a win/win for both you and your hair!

When in doubt, it’s always a good idea to choose whole food options and to add some “complexity” to your carbs by ensuring you’re eating them with fiber, protein, or a healthy fat, as this will help buffer how quickly they’re broken down into sugar.

Written by Dr. Kali Olsen, ND

Good vs. Bad Carbs: Which Ones to Avoid (2024)

FAQs

Good vs. Bad Carbs: Which Ones to Avoid? ›

“High-fiber carbs (like legumes, whole grains, starchy veggies and fruits) and high-protein carbs (like legumes, yogurt and milk) provide more nutrients than low-fiber carbs (like refined grains, sweets and sugary drinks),” Zumpano says.

What are good carbs to eat vs bad carbs? ›

Nutrition experts divide carbohydrates into “good” and “bad.” Good carbs, like whole grains, brown rice and legumes, don't raise blood glucose quickly. Bad carbs, like white bread, cookies and sugary sodas, cause blood glucose to rise quickly.

What is the number one carb to avoid? ›

1. Sugary Foods. Most people already think of many of the foods in this category as unhealthy treats. Candy, soft drinks, and sweet desserts such as cake, chocolate, and ice cream are all expected entries on a list of carbs to avoid to lose weight.

What are the top 5 worst carbs? ›

THE WORST: Refined or processed carbohydrates

These are carbohydrates like white bread, white sugar, white flour pasta, and white rice that have been stripped of their blood-sugar-buffering fiber, as well as vitamins, minerals, and antioxidants, things both your body and hair are big fans of.

Which carb is worse? ›

Simple carbs, which are the so-called “bad” carbs, consist of short chains of sugar molecules. They include sugar, honey and other sweeteners, and are also found in dairy products, fruit and fruit juices, and in highly processed foods.

What is the healthiest carb to eat? ›

The healthiest sources of carbohydrates—unprocessed or minimally processed whole grains, vegetables, fruits and beans—promote good health by delivering vitamins, minerals, fiber, and a host of important phytonutrients.

What foods should I avoid to avoid carbs? ›

Simply put, when you follow a no-carb diet, you avoid all high carb foods. Specifically, try to eliminate whole and refined grains, baked goods, fruits, milk, yogurt, beans, legumes, pasta, bread, sugar-sweetened beverages, and starchy vegetables like peas and corn.

What carbs should you avoid for belly fat? ›

"Eating refined carbs like bread, rice, pasta and cookies [in excess] will increase our belly fat. If we want to lose it, we should focus on eating nutrient- and fiber-rich carbs such as vegetables and low-glycemic fruits," says Djordjevic.

Are potatoes bad carbs? ›

They're also chock full of starch, which is a carbohydrate. But even though a potato is considered a complex “healthy” carb, your body digests these carbs faster than other kinds of complex carbs. These broken-down carbs flood your blood with sugar. This makes your blood sugar spike quickly.

Is oatmeal bad carb? ›

With so much talk about so-called 'bad carbs', oats have been written off and cut from many diets. But the truth is, whole grain oats are a complex carbohydrate with nutritional benefits. A bowl of cooked oatmeal breaks down to become energy that's slowly absorbed by your body.

What are 4 bad carb foods? ›

Carbs to Avoid, Plus Better Bets
  • Sugary drinks, sodas, and fruit juices. These often have added sugar. ...
  • White bread. Simply substitute your normal sandwich bread for a whole grain or whole wheat option.
  • Pasta. ...
  • French fries and potato chips. ...
  • Cookies, cakes, and pastries. ...
  • Candy, chocolate, and ice cream.
Oct 8, 2023

Are eggs high in carbs? ›

Eggs actually contain very little carbohydrate. In fact, an average egg provides just 0.7 grams of carbs. To put that into context, Australians on average consume around 310 grams of carbs daily. (1) Eggs contribute a very small amount to our daily carb intake; barely a gram!

What vegetables are high in carbs to avoid? ›

3. Starchy vegetables
  • Sweet corn: 75 grams (59 grams net)
  • Potatoes: 22 grams ( 20 grams net)
  • Sweet potatoes: 18 grams (15 grams net)
  • Peas: 25 grams (16 grams net)
  • Butternut squash: 11 grams (8 grams net)
Aug 10, 2023

What is the cleanest form of carbs? ›

The best choices are those that aren't processed. Whole grains, fruits, and vegetables are considered good carbs because they contain vitamins, minerals, and dietary fiber. In contrast, refined — or processed — carbs like white pasta, sugary drinks, and pastries have little or no nutritional value.

Is pasta a bad carb? ›

Pasta is high in carbs, which can be bad for you when consumed in large amounts. It also contains gluten, a type of protein that causes issues for those who are gluten-sensitive. On the other hand, pasta can provide some nutrients that are important to health.

What are the worst carbs to eat after 50? ›

Cookies, candies, cakes, ice cream, and packaged sweet bakery items qualify as processed desserts. They share common traits like added sugars, refined flour, and unhealthy fats that make them problematic for health after 50. The added sugars and refined carbs in sweets and desserts cause rapid blood sugar spikes.

What are the best carbs for weight loss? ›

The Best Carb to Achieve Your Weight Loss Goals

Answer: Whole grains, says Susie. Yes, that is an entire food category, but foods like brown rice, oatmeal and quinoa are too good to choose just one. Whole grains are grains that contain the entire grain: bran, germ and endosperm.

Can you eat good carbs on a low carb diet? ›

And remember, low-carb does not mean no carb! A low carb diet still provides at least 20% of the day's calories from carbohydrates. Well-planned low-carb diets do include vegetables, fruit, beans and even small portions of whole grains, such as oats and quinoa.

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