Overfed and Underfueled

Overfed and Underfueled

Understanding Quantity vs. Quality in Nutrition

Why Eating Too Much at One Time Is the Real Issue

It is not just what we eat that affects our health but also how much we eat at once. Overeating, even with healthy food, can overwhelm the body’s ability to manage digestion and metabolism. When we take in too much food in a single sitting, our systems cannot keep up. Excess glucose from carbohydrates, for example, is first stored as glycogen in the liver and muscles. Once those storage areas are full, the body converts the extra into fat.

Understanding Energy and the Role of ATP

ATP, or adenosine triphosphate, is the main energy carrier in our cells. We create ATP when the body processes carbohydrates through a series of steps including glycolysis and the Krebs cycle. The Krebs cycle is a key metabolic pathway that occurs inside the mitochondria and turns fuel into usable energy. This is how our bodies power everything from brain activity to walking.

How the Liver Manages Nutrients

The liver is a major metabolic organ that processes nutrients, stores energy, and filters toxins. When we eat too much, the liver has to work harder to process excess glucose and fat. Over time, this can lead to fat buildup in the liver, known as fatty liver disease. Alcohol and highly processed foods make this problem worse by placing additional stress on the liver’s detoxification functions.

The Impact of Lifestyle Habits

Stress, poor sleep, alcohol, and lack of exercise all affect how well the body uses food. Sedentary living slows metabolism and makes it harder to burn off excess energy. Alcohol disrupts liver function and increases fat storage. Chronic stress elevates cortisol levels, which can also lead to fat accumulation, especially around the midsection.

Why Starving the Body of Carbohydrates Is Dangerous

Some people believe that removing all carbohydrates, even from fruits and vegetables, can help starve disease. But this is not true. Cutting out healthy carbohydrates deprives the body of important nutrients and energy. Without glucose from plants, the body will turn to protein for fuel. This process is called gluconeogenesis and it puts extra strain on the liver and kidneys.

Too much protein, especially animal protein, can lead to inflammation and other health problems. Unlike carbohydrates, protein is not as efficient for creating energy. It does not go through the full Krebs cycle in the same way. Protein is broken down into amino acids, which are used to build and repair tissue. When used as fuel, however, protein can leave behind waste products that the body must clear.

The Power of Resistant Starches

Not all carbohydrates are the same. Resistant starches are special types of carbs that do not get digested in the small intestine. Instead, they reach the colon where they feed healthy gut bacteria. These bacteria turn resistant starch into short chain fatty acids like acetate, propionate, and butyrate. These compounds reduce inflammation, protect the gut, and support immune function.

Resistant starches are found in foods like legumes, green bananas, oats, and cooked then cooled potatoes. Eating more of these foods can improve digestion, increase energy, and support long-term health.

The Danger of Extreme Diets

Extreme diets that completely avoid certain food groups are risky. Many so-called experts tell people what not to eat but fail to offer a realistic, nourishing plan. This is proscribing instead of prescribing. Instead, a healthy approach is to guide people toward what they should eat.

A plant-based diet that includes a variety of fruits, vegetables, whole grains, legumes, nuts, and seeds gives the body all the macronutrients and micronutrients it needs. Avoiding added sugar and processed food is smart. But eliminating all sugar including natural sugars from fruit can leave people undernourished and fatigued.

The Key Is Balance

Science shows that the most sustainable path to health does not involve cutting out entire food groups. Instead, we need to control the glycemic index of our meals, maintain a healthy weight, move our bodies daily, and practice stress reduction. This balanced lifestyle supports both physical and mental well-being and gives us the best chance to prevent and manage disease.

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