The Must-Know Side Effects of a Low-Carb Diet HealthifyMe - Blog HealthifyMe - Blog - The definitive guide to weight loss, fitness and living a healthier life.
Everyone’s definition of a low-carb diet is different. Many people, for example, eat more carbohydrates than their bodies require, and cutting back on carbohydrates can help them return to healthy carbohydrate consumption. However, others prefer to reduce carbohydrates even further to control their glucose levels better or lose weight.
While carbohydrate restriction isn’t required to lose weight, sometimes people would prefer to do so since it makes them feel happier. The ideal diet for you would be the one you can follow for a long time or that allows you to improve your health. It is essential to consult with a qualified nutritionist before adopting a low carbohydrate diet. Your body will take time to adjust to a new diet.
Reducing your carb intake, particularly unhealthy simple carbs from refined grains and sugar, can have beneficial effects. However, you may experience low-carb side effects depending on how many carbs you cut out. These can be uncomfortable but typically subside as your body adapts after the first week or two.
Low Carb Diet: An Introduction
A low-carb diet is where between 20-30% of your overall daily energy intake comes from carbs. It comes in a few varieties. Some people adopt 100 to 150 grams of carbs per day, while others approach a more considerable reduction of between 50 and 100 grams. Following a lower-carbohydrate diet means reducing the intake of foods containing carbs and not eliminating them. It’s important to note that you have to increase the amount of protein and fat while decreasing the carb intake.
Side Effects of a Low-Carb Diet
Here are the most prevalent adverse side effects of low-carb diets.
Constipation
Constipation is a common complaint among those on a low carbohydrate diet, especially very low carbohydrate diets like keto. While any change in your usual dietary patterns can cause changes in your bowel movements, constipation is common among those on a low carbohydrate diet.
One cause for constipation is a lack of fibre from low-carb diets’ avoidance of high-fibre foods like beans and grains, which are also relatively high in carbs and so generally avoided on low-carb diets.
While constipation can often go away as the body adjusts, staying hydrated, taking a fibre supplement, and eating more low-carb, high-fibre foods can help. Consult a health care provider if constipation persists.
Fatigue
Because carbs are the body’s primary fuel source, being tired all the time is a common symptom of low-carb diets. In addition, a study suggests that limiting carbs to less than what our bodies require for healthy energy can cause weariness, mainly as the body adjusts to the diet plan.
Low-calorie diets paired with low-carb foods, in general, can cause weariness, so make sure you’re getting enough calories to maintain your lifestyle. To lose weight, you’ll need to eat fewer calories than you burn. However, a calorie deficit that is too high will reduce your daily energy expenditures and slow your metabolism.
Headaches
If you cut back on carbohydrates, you’ll also cut back on sugar. Withdrawal symptoms such as headaches might occur in those habituated to eating more sugar. In addition, various studies suggest that when you start a low-carbohydrate diet, the severity of your headaches increases.
Muscle Cramps
Muscle cramps can occur if you don’t get essential minerals in your diet, such as magnesium and potassium. Potassium, salt, and magnesium can regulate muscle contraction and several other important activities related to nerve and muscle function.
Whole grains are a good source of such minerals, and cutting them out of your diet may cause deficits and adverse effects. Because carbohydrates interact with water and glycogen storage, lowering carbohydrates forces your body to carry less water. Therefore, you may lose these minerals due to a significant loss of body water.
Bad Breath
Low-carbohydrate diets are frequently associated with bad breath (halitosis). A bad taste in the mouth sometimes accompanies terrible breath. In the lack of preferred glycogen, your body resorts to ketone for fuel on low-carb diets. Ketones are eliminated by urination and exhaling. Therefore, ketone exhalation could be the source of bad breath.
Low Athletic Performance
Low-carbohydrate diets don’t give much in the form of glycogen stored energy, which is the body’s preferred energy source for activity. As a result, your capacity to perform during exercise, sport, and training activities will decline.
A study shows that participants performed worse on high-intensity cycling and running tasks after four days on a ketogenic diet than those who’d spent four days on a high-carb diet.
The HealthifyMe Note
The adverse effects you may experience while on a low-carb diet are determined by your physiology, current eating habits, and the number of carbohydrates and overall calorie reduction you make.
Side Effects After Discontinuing a Low-carb Diet
You may encounter adverse effects as your body adjusts to the end of your low-carb diet. The following are the most common:
Gaining Weight
Because most low-carb diets are so restrictive, health experts say it’s not an appropriate plan to follow long-term. Instead, it’s best done for 30 to 90 days. But the problem is that most people will regain much of their lost weight as soon as they return to carbs.
You may notice a rise in weight, usually due to water weight because carbohydrates increase the quantity of water in your body. So, as the amount of water in your body increases, so does your weight. So it isn’t fat gain or unhealthily gained weight. Weight regain is an issue with any fad diet, but it seems more common with low-carb diets. These back-and-forth weight fluctuations can contribute to an unhealthy relationship with food, leading to disordered eating.
Irritability and Fatigue
The rise and fall of blood sugar can leave you exhausted and angry, especially if you add simple carbs and sugars. Most people report that the feeling of irritation is worst for the first three days of discontinuing a low-carb diet but then gets better and dissipates after the first week.
Hunger
You may feel hungry if you are used to the early satiety benefits of a high-fat diet to compensate for the absence of carbohydrates. Furthermore, choosing simple carbohydrates or sugar might cause blood sugar surges, leaving you hungry soon after you’ve stopped eating.
Bloating
Increased fibre and carbs may induce bloating during the adjustment phase. High bodily water can also appear as bloat. However, it should settle down, and you should stay hydrated as you acclimatise.
Foods to Eat While on a Low Carb Diet
Fruits
Not all fruits contain high levels of carbohydrates. Plus, because of their nutritious value, you can eat most of them in your low carbohydrate diet. They also have natural carbohydrates like glucose and fructose, which aren’t as bad for you as refined sugar.
Berries, watermelon, kiwis, apples, peaches, cherries, and citrus fruits have lower carbohydrate content. They’re high in minerals, including potassium, manganese, and magnesium, as well as antioxidants. Furthermore, they are rich in fibres which help prevent many diseases.
On a low-carb keto diet (<20 grams of net carbs per day), it’s better to choose berries over other fruits. Even a moderately low-carb diet (20-50 grams per day) includes no more than one to two servings of fruits per day. You can eat two or three fruits a day on a liberal low-carb diet (50-100 grams per day).
Vegetables
Carbohydrates are lower in vegetables that grow above ground than in root vegetables. Vegetables are also high in essential nutrients, vitamins, and antioxidants. As a result, they are beneficial in treating various diseases, including hypertension. Tomatoes, capsicum, green leafy vegetables, cauliflowers, and other veggies are some of the best to eat.
Poultry, Meat and Seafood
Poultry and lean meats are high in protein and low in carbs. Fatty fish are high in omega-3 fatty acids and low in carbs. They are the good fats that help your body fight harmful cholesterol. You can eat tuna, shrimp, salmon, mackerel, and other fatty fish in your low-carb diet.
Nuts
Nuts are a good source of magnesium, potassium, dietary fibre, and antioxidants. Furthermore, nuts that do not have added salt are low in sodium and high in healthful fats. Omega-3 and 6 fatty acids are abundant in them. Low-carb nuts include almonds, cashews, peanuts, and walnuts.
The HealthifyMe Note
Cutting down on carbohydrate consumption does not mean reducing the number of healthy nutrients your body requires to function normally. On the contrary, incorporating the right foods and planning a well-balanced diet during a low-carb diet can also lead to several health benefits.
Precautions
Those with diabetes and those on hypertension or blood sugar-lowering drugs should seek medical advice before starting a low-carb diet. In addition, when attempting a low-carb diet, medicines may need to be modified and should be monitored.
People commonly start a low-carb diet for short-term weight management and blood sugar control. More research is needed, however, to determine the long-term consequences of adopting this diet.
Long-term research on the long-term effects of low-carbohydrate diets says that they may be dangerous, potentially raising your risk of early death, cardiovascular disease, strokes, and cancer.
Pregnant and breastfeeding moms should probably avoid low-carbohydrate diets. Suppose you’re thinking of cutting back on carbs when trying to conceive or expecting or lactating. In that case, it is generally not advised to follow a low-carb diet as energy requirements for those physiological requirements are higher.
Conclusion
Like two sides of a coin, a low-carb diet also has its benefits and side effects. The ability to follow a diet also depends on race and ethnicity. For example, people living in the Asian subcontinent countries find it a little more challenging to follow a low-carb diet than someone living in the west, whose staple diet is dependent on proteins.
Some people swear by the low-carb diet for weight loss. However, there is a possibility of weight regain. A moderate reduction in carbs probably will not cause any noticeable side effects. A more considerable decrease in carb intake could cause more pronounced effects, such as headache, fatigue, and changes in bowel habits. It is best to consult a qualified nutritionist to know the best diet for you according to your needs.
Frequently Asked Questions (FAQs)
Q. Can a low-carb diet hurt you?
A. No, it cannot hurt you. However, you might face some side effects while following a low-carb diet like tiredness, constipation, initial gain in water weight, and irritability. Collectively, these symptoms are referred to as the “keto flu.” Although low-carb diets have no severe harm, you can take a few steps to lessen their side effects potentially. One such measure is staying hydrated while reducing the carbs gradually.
Q. How long does it take your body to adjust to a low-carb diet?
A. Your body will take 3-4 days to adjust to a low-carb diet. You may face a fever, tiredness or flu-like symptoms during the 3-4 days, but after that, your body will adapt to it, and you will be able to follow the diet. A positive approach is of utmost importance and will help you gain the benefits of the diet.
Q. Can you survive without carbohydrates?
A. Some organs can adapt to a life without carbohydrates, but others cannot. Therefore, following a lower-carbohydrate diet essentially means you should decrease, but do not eliminate, the intake of foods containing carbs.
Q. Can a low-carb diet cause anxiety?
A. A low carbohydrate diet can cause tiredness and fatigue but cannot cause anxiety. Anxiety results from emotions and is mostly never connected to low-carb foods. Anxiety typically arises from stress and personal and work problems.
Q. Can no carbs make you dizzy?
A. Initially, when starting to follow a low-carb diet, you might feel dizzy. Dehydration is the leading cause of dizziness while cutting down carbs. However, after 3-4 days of following a diet, dizziness will gradually go away as the body starts adapting to the diet.
Q. What does carb withdrawal feel like?
A. A sudden decrease in carbs can cause fluid loss. The fluid loss also causes losses of electrolytes, leading to muscle spasms and muscle weakness. It is also common to feel the effects of dehydration, including fatigue, headache and dizziness.
Q. How do you feel when you stop eating carbs?
A. Suddenly removing carbs from your diet might make you prone to tiredness, constipation, irritability etc. Some other side effects of discontinuing carbs are increased hunger, bloating, weight gain etc.
Q. Can a low-carb diet make you feel shaky?
A. Yes, you may feel dizzy. Suddenly removing carbs from your diet might make you irritable, dizzy and uneasy. In addition, you might face some side effects while following a low-carb diet, like tiredness and constipation. Although you may lose weight initially, most of it will be water weight. However, once you stop following the low-carb diet and increase your carb intake, you may quickly start gaining weight. That is because reducing carb also reduces glycogen storage in your muscles, and glycogen helps your body retain water. So, a sharp decrease in carbs can cause fluid loss, leading to dehydration. As a result, you’ll feel the effects of fatigue, headache and dizziness.
Q. What do carbs do to your brain?
A. Carbohydrates are food for the brain as the brain utilises only glucose. Proteins break down into glycogen, which the brain can use for fuel but not as well as glucose. As a result, removing carbs from one’s diet may limit the brain’s energy source and alter brain function if other nutrients do not meet energy requirements.
Q. Will I lose weight if I stop eating carbs?
A. You will lose weight if you suddenly stop eating carbs. However, initially, it’s primarily water weight. Another reason low-carb leads to weight loss is that protein and fats are more satiating than carbs. This increase in satiety reduces overall hunger and lowers your overall food intake throughout the day.
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