Carbohydrates: Myths, Sources, and Health Impacts - Nutrition

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Carbohydrates


Hello, dear nutritionist: I would like to ask: 1.
What are carbohydrates? I've heard that eating them can make you gain weight??? 2.
What foods contain carbohydrates? 3.
What harm can occur to the body if one does not consume them? I look forward to your guidance!

A-Mao, 20~29 year old female. Ask Date: 2003/12/29

Dr. Liu Qiaoyun reply Nutrition


Hello: Carbohydrates are one of the three macronutrients that produce energy.
Therefore, it is not only carbohydrates that can lead to weight gain; the other two are proteins and fats.
Carbohydrates are compounds made of carbon and water, primarily found in grains, tubers, and sugars, such as rice and flour products, sweet potatoes, taro, potatoes, lotus seeds, corn, water chestnuts, as well as sucrose, fructose, honey, and products made from tapioca flour, like thick soups, frying powders, and tapioca balls, along with various delicious fruits and preserved snacks like jellies.
There are indeed many varieties.
They are mainly categorized by their composition, leading to a wide range of derived products.

If you do not consume carbohydrates, your body must utilize other food sources or stored muscle or fat to generate energy.
However, using proteins and fats for energy is not aligned with the body's original design, resulting in the production of more metabolic waste, such as nitrogenous waste and ketone bodies, which can impose a metabolic burden on the body and cause organ damage, and it can also suppress appetite.
Thus, the question is not whether one can avoid carbohydrates, but whether it is beneficial for the body.

Furthermore, not eating carbohydrates does not necessarily mean one will not gain weight! I believe that any weight control should prioritize health.
It is essential to choose the healthiest weight loss methods.
If one loses weight in areas that should not be slimmed down while not losing weight in areas that should, it can be quite frustrating.
Additionally, increasing physical activity is also a healthy and effective way to maintain fitness!
Wishing you health and happiness, Qiao Yun 12/30

Reply Date: 2003/12/29

More Info


Hello! Thank you for your questions about carbohydrates. Let's break down your inquiries one by one.

1. What are carbohydrates?
Carbohydrates are one of the three macronutrients, alongside proteins and fats. They are organic compounds made up of carbon, hydrogen, and oxygen, and they serve as a primary source of energy for the body. Carbohydrates can be classified into three main types: sugars (simple carbohydrates), starches (complex carbohydrates), and fiber. Simple carbohydrates are quickly absorbed and provide immediate energy, while complex carbohydrates take longer to digest and provide sustained energy.

2. Do carbohydrates make you gain weight?
The notion that carbohydrates inherently cause weight gain is a myth. Weight gain occurs when there is a caloric surplus, meaning you consume more calories than your body burns. Carbohydrates, like any other macronutrient, can contribute to weight gain if consumed in excess. However, they are also essential for providing energy, especially for physical activities. It’s important to focus on the quality of carbohydrates rather than just the quantity. Whole grains, fruits, and vegetables are excellent sources of carbohydrates that also provide fiber, vitamins, and minerals, which are beneficial for overall health.

3. What foods are carbohydrates?
Carbohydrates are found in a wide variety of foods. Here are some common sources:
- Grains: Rice, wheat, oats, and quinoa.

- Fruits: Apples, bananas, berries, and oranges.

- Vegetables: Potatoes, corn, peas, and carrots.

- Legumes: Beans, lentils, and chickpeas.

- Dairy Products: Milk and yogurt contain lactose, a natural sugar.

- Sugary Foods: Candy, pastries, and soft drinks contain added sugars.

4. What happens if you don’t eat carbohydrates?
Eliminating carbohydrates from your diet can lead to several health issues. Carbohydrates are the body’s preferred source of energy, especially for the brain and muscles. Without sufficient carbohydrates, your body may enter a state called ketosis, where it starts to burn fat for fuel instead. While some people may follow low-carb diets for weight loss, it’s crucial to ensure that you are still getting enough nutrients. A lack of carbohydrates can lead to fatigue, decreased physical performance, and difficulty concentrating. Additionally, fiber, which is found in many carbohydrate-rich foods, is essential for digestive health. Insufficient fiber intake can lead to constipation and other gastrointestinal issues.

In summary, carbohydrates are an essential part of a balanced diet. They provide energy, support bodily functions, and contribute to overall health. Instead of fearing carbohydrates, focus on choosing whole, unprocessed sources and maintaining a balanced diet that includes a variety of foods. If you have specific dietary concerns or health goals, consulting with a registered dietitian or nutritionist can provide personalized guidance. Remember, moderation and balance are key to a healthy lifestyle!

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