Processed Meats
Sausages, hot dogs, and deli meats contain high levels of sodium, preservatives, and saturated fats. While they may fill you up quickly, they do not provide much fiber or many essential nutrients. The heavy sodium content can leave you dehydrated, which often shows up as sluggishness and low energy later in the day. The fat content also slows digestion, making your body work harder than it needs to. Instead of feeling satisfied, you may feel weighed down and tired. Many people notice that meals built around processed meats lead to a short burst of fullness followed by a noticeable drop in energy. This is especially true when they are eaten on their own without lighter foods to balance them out. Over time, relying on processed meats can turn into a cycle of brief satisfaction followed by repeated energy crashes that are hard to ignore.
Candy Bars, Pastries and Donuts
Sugary treats, such as candy bars and pastries, provide a quick hit of sugar to your bloodstream. While this may give you a fast boost of energy, your body also processes the sugar quickly, which causes insulin levels to rise. This leads to a sudden drop in blood sugar, leaving you feeling tired, irritable and craving more sugar shortly after.
White Bread & Refined Carbs
Foods made from refined flour, including white bread, bagels, and crackers, digest quickly and turn into glucose. Without fiber or protein to slow down the absorption process, blood sugar rises rapidly. Soon after, insulin reduces glucose levels, leading to extreme fatigue and hunger. As a result, these foods offer little lasting energy, making them better suited for endurance athletes who need a quick boost of energy pre- or post-exercise.
Energy Drinks
Energy drinks mix high doses of caffeine with a lot of sugar. The caffeine overstimulates your nervous system, while the sugar raises blood glucose. At first, you will feel alert and energized, but this effect won't last very long. As insulin reduces blood sugar, you will eventually experience a crash, leaving you feeling jittery, anxious and tired. With regular use, it can even lead to increased fatigue and disrupted sleep patterns.
Soda
Regular sodas are essentially liquid sugar. They lack any sort of fiber or nutrients, causing the sugar to be absorbed almost instantly. This results in a sharp rise in blood glucose and a surge of insulin, which quickly lowers blood sugar and leaves you feeling drained. The carbonation may feel refreshing at first, but the crash that follows often leads to extreme fatigue and cravings for even more sugar.
Sugary Breakfast Cereals
Many cereals that are marketed as healthy actually contain a lot of added sugars. Eating them in the morning causes a quick spike in blood sugar, which gives you a very brief energy boost. Within just a few hours, however, insulin reduces glucose levels, making you feel fatigued and unfocused. Since they lack protein and fiber, these cereals also don't provide lasting energy, often resulting in mid-morning crashes and cravings for more sugar.
Fast Food Burgers & Fries
Fast food meals contain refined carbs, unhealthy fats and way too much sodium. The refined bun raises blood sugar, while the greasy fries slow down digestion and make you feel heavy and tired. The high fat content also delays nutrient absorption. So, instead of providing steady energy, you end up feeling fatigued and lazy. Additionally, the high sodium content dehydrates you, which makes tiredness that much worse.
Alcohol
Alcohol is not only bad for the liver, but it can also disrupt your body's natural energy balance. At first, it will relax you, but, over time, it interferes with sleep cycles, preventing deep rest and causing you to feel drained and sluggish. Alcohol also dehydrates the body, which worsens fatigue. Sugary cocktails are even wose, as the high sugar level causes glucose spikes and drops. Even moderate drinking can leave you with less energy.
Packaged Snacks
While packaged foods may be convenient, they definitely aren't good for your health. Most of the time, they are made using refined flour, oils and salt - all of which digest quickly, causing blood sugar spikes and drops. Additionally, the lack of protein and fiber means that they don’t sustain energy for very long. Salty snacks, such as crisps, will also leave you dehydrated, worsening fatigue.
Fruit Juices (Store-Bought)
Commercial fruit juices lack fiber and contain heaps of sugar. Without fiber to slow absorption, the sugar enters your bloodstream quickly and causes a spike in glucose. Insulin then lowers the levels, which results in a major energy crash. Although they are sometimes marketed as healthy, these juices are basically glorified soda. Whole fruits, with their fiber intact, offer a much more stable energy source, as well as better nutrition.
Flavored Yogurts
While yogurts are often advertised as a healthy snack, some brands actually have more sugar than desserts. Additionally, they are packed full of syrups and flavorings, causing blood sugar levels to spike shortly after eating. Because of the lack of fiber, however, this spike is followed by a crash, as well as cravings for even more sugar. Plain Greek yogurt with fruit is a much healthier choice, as it provides protein and probiotics - both of which help to maintain energy.
Protein Bars
Most commercial protein bars are essentially glorified candy bars, filled with syrups and processed carbs. Even though they are marketed as fitness food, they lead to blood sugar spikes, followed by crashes. The sugar content overshadows any benefits from the protein, making you feel tired soon after eating.
Ice Cream
Ice cream mixes sugar and fat. The sugar initially raises your blood glucose level, while the fat slows down digestion, leaving you feeling weighed down. After the initial burst of energy, insulin then reduces your blood sugar, leading to a crash. If eaten regularly, your body's natural energy levels will start to deteriorate. Additionally, you will be left with intense sugar cravings.
Pizza
We all know that pizza isn't exactly the healthies of food options. To be more specific, the refined crust causes a spike in blood sugar, while the heavy cheese and processed meats slow down digestion. This combination will leave you feeling sluggish and fatigued soon after eating. So, even though it may taste good, pizza definitely shouldn't be a staple meal.
White Pasta
White pasta is mostly made from refined flour, which digests quickly and is converted into glucose. Since it lacks any fiber and protein, blood sugar rises fast and then drops, leaving you feeling extremely tired and sluggish. Large portions make the crash even worse, as your body has a hard time processing the sudden load of carbs. Whole-grain pasta is a much healthier option, as it provides fiber that slows down absorption and helps maintain your energy levels for longer.
Fried Foods
Fried foods, such as chicken, onion rings and fries, are extremely high in both fat and oil. They slow down digestion and make you feel tired and bloated. Additionally, most people eat them with some type of condiment, which causes your blood sugar to spike and then crash. The high sodium content also leads to dehydration, making the fatigue that little bit worse. Despite being tasty, these foods definitely shouldn't be enjoyed on a regular basis.
Pastries & Cakes
It's no surprise that pastries and cakes can cause sudden weight gain. However, as they combine refined flour, sugar and fat, these desserts also lead to sudden energy crashes. The fat slows down digestion, making you feel heavy and bloated, while the sugar leaves you drained once insulin lowers your glucose level.
Sweetened Coffee Drinks
Frappuccinos and syrup-filled lattes that combine caffeine with heap loads of sugar. The caffeine overstimulates your nervous system, while the sugar raises blood glucose. At first, you feel energized, but that effect quickly fades, leaving you drained and fatigued. Caffeine withdrawal makes this fatigue that little bit worse. In fact, these sweetened coffee drinks are actually one of the biggest causes of energy crashes, as most people underestimate just how much sugar they really have.
Chocolate Bars
Milk chocolate bars are packed full of sugar and fat. While the sugar raises your blood glucose level, the fat slows down digestion, leaving you feeling sluggish and lazy. Dark chocolate, which has a much lower sugar content, is a much better option if you want to avoid sugar crashes. On the other hand, milk chocolate is basically candy, as it is extremely high in sugar. Not only will you be left with an energy low, but you will also crave more sugar shortly after eating, increasing your chances of weight gain.
Instant Noodles
Packaged ramen and instant noodles are made from refined flour and are extremely high in sodium. The refined carbs cause a quick spike in blood sugar, while the sodium dehydrates you and makes the fatigue worse. So, although they are convenient, they offer very little nutritional value. Whole-grain or fresh noodles are a much healthier option.



















