Will skipping breakfast help you lose weight faster?

"I heard it's better to skip breakfast if you want to diet?" This is one of the most common questions I hear in the consultation room. This is because many people naturally skip breakfast while trying intermittent fasting for weight loss. The expectation that skipping one meal will reduce total calorie intake and lead to weight loss is, in some ways, natural.

However, some people say that skipping breakfast led to overeating at lunch and feeling even hungrier at dinner, causing them to gain weight instead. Others, on the other hand, report feeling more comfortable and having fewer cravings for snacks when they don't eat breakfast. Why do people react so differently?

To get straight to the point, skipping breakfast itself does not guarantee weight loss. What's more important is observing your overall daily eating patterns and your body's reactions.

Total Calories and Meal Quality are Key

The basic principle of weight loss is ultimately 'calories in < calories out'. If skipping breakfast reduces your total daily calorie intake, weight loss can occur. For example, if someone who usually eats 400kcal for breakfast skips it but maintains their lunch and dinner portions, they would consume 400kcal less per day.

The problem is that our bodies don't react that simply. The extreme hunger from skipping breakfast can stimulate a compensatory desire at lunchtime. Thinking, "I didn't eat breakfast, so this much is okay," people tend to eat larger portions than usual or choose carbohydrate-heavy meals that rapidly raise blood sugar. Ultimately, you might end up consuming more calories at lunch, dinner, and even with late-night snacks than you saved by skipping breakfast.

False Hunger Caused by Blood Sugar Fluctuations

When fasting periods lengthen, blood sugar drops, and our bodies send a strong signal to replenish energy. If you quickly fill up on refined carbohydrates like bread, noodles, or tteokbokki at this time, you'll experience a 'blood sugar spike' where blood sugar levels soar rapidly and then plummet.

During this process, excessive insulin is secreted, and soon after, a 'false hunger' returns. If this pattern repeats, the appetite control system can break down, leading to overeating, and increased insulin resistance can make it easier to gain weight. The choice to skip breakfast can actually be the starting point for a day-long blood sugar rollercoaster.

Listen to Your Body

So, should you eat breakfast or not? The answer is 'it varies from person to person.' It's a good idea to find the method that suits you best using the following criteria:

1. If you don't feel hungry in the morning: There's no need to force yourself to eat. If you had a late dinner the night before or naturally lack appetite in the morning, it's natural to follow your body's signals. However, check if you can maintain a healthy condition until lunch and if you avoid overeating at lunchtime.
2. If skipping breakfast leads to overeating at lunch and dinner: In this case, skipping breakfast hinders your diet. It doesn't have to be an elaborate meal. Simple yet protein-rich foods like 1-2 boiled eggs, Greek yogurt, or a pack of soy milk can curb hunger and significantly help manage your total daily food intake.
3. If you have high activity levels in the morning or feel low on energy: Especially for those who need to focus in the morning or have a lot of physical activity, breakfast can be a good source of energy. In traditional Korean medicine, for individuals in a state of Qi deficiency (氣虛) or those with a weak digestive system, categorized as Spleen deficiency (脾虛) type, having a warm breakfast can be important for maintaining daily well-being.

Finding Your Own Eating Rhythm

Ultimately, the core of the breakfast debate isn't about 'whether to eat or not,' but rather 'can you find an eating rhythm that suits you, maintain stable blood sugar, and control your total intake?' If skipping breakfast works well for you and allows you to manage your daily meals without overeating, it can be a good strategy. However, if it makes it harder to control your appetite, then building a healthy breakfast plan that suits you is a wise choice.

As such, dietary strategies should vary according to individual lifestyle patterns and bodily responses. If you find it difficult to control your appetite and find an eating rhythm that suits you on your own, it can be helpful to first check your body's balance. This process can be reviewed together through a consultation for traditional Korean medicine diet programs, such as Baekrok Gam Bi Jung.

Frequently Asked Questions

Q. I have no appetite at all in the morning; should I force myself to eat?

No, there's no need to force yourself. If you lack appetite, it's best to respect your body's signals. However, it could become a problem if you get too hungry before lunch and reach for snacks like cookies or bread, or if you rush to overeat at lunchtime. In such cases, having a simple protein drink or a handful of nuts might help stabilize your appetite.

Q. When I skip breakfast, I overeat at lunch. How can I fix this?

This is a signal that your body strongly desires energy. In this situation, skipping breakfast isn't the right approach for you. Instead of skipping breakfast, it's better to have a healthy meal that raises your blood sugar slowly. For example, a balanced meal with protein, complex carbohydrates, and fats – like half a bowl of multi-grain rice with a fried egg, or a whole-wheat bread sandwich – can maintain fullness for a long time and prevent overeating at lunch.