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Low-carbohydrate diet
Last reviewed: 07.06.2024
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A Low-Carb Diet is a type of diet that restricts carbohydrate intake, especially fast carbohydrates such as sugar and starches. It is a popular diet that can have different variations and approaches. Here are the basic principles of a low carbohydrate diet:
- Carbohydrate restriction: The main feature of a low-carbohydrate diet is to limit carbohydrate intake. This may include limiting sugar, bread, potatoes, pasta, rice and other sources of carbohydrates.
- Increased protein and fat intake: To compensate for reduced carbohydrate intake, a low-carbohydrate diet often includes increased protein and fat intake. Protein and fats become the primary sources of energy.
- Emphasize lean and natural foods: Many low-carb diet advocates recommend eating lean meats, fish, nuts, seeds, olive oil, and other natural and healthy foods.
- Sticking to an eating plan: Like other diets, a low-carbohydrate diet should be followed for a certain period of time or over a long period of time to achieve the desired results.
Results of a low-carbohydrate diet may include:
- Weight Loss: Restricting carbohydrates can promote weight loss as the body begins to use fat stores for energy.
- Improve blood sugar levels: A low-carbohydrate diet can help control blood sugar levels, which is helpful for people with type 2 diabetes.
- Reduced appetite: Increased protein and fat intake can reduce feelings of hunger, which helps with diet adherence.
- Improve cardiometabolic factors: Some studies show that a low-carbohydrate diet can lower triglycerides, increase "good" cholesterol (HDL) levels, and improve insulin sensitivity.
However, it is worth remembering that a low carbohydrate diet may not be suitable for everyone, and it has its limitations and side effects. Before starting such a diet, it is important to consult a doctor or dietitian to make sure it is safe for your health and meets your goals.
Indications
A low-carbohydrate diet may be prescribed in the following cases:
- Weight loss: A low-carbohydrate diet is often used to lose excess weight and manage obesity. Restricting carbohydrates can promote weight loss as the body begins to use fat for energy.
- Type 2 diabetes: This diet may be recommended for people with type 2 diabetes to control blood sugar levels. Restricting carbohydrates helps prevent rapid fluctuations in blood glucose levels and improve insulin sensitivity.
- Polycystic ovary syndrome (PCOS): A low-carbohydrate diet may help women with PCOS improve menstrual regularity and reduce insulin resistance.
- Reducing cardiovascular disease risk: A low-carbohydrate diet may be recommended for people at increased risk of cardiovascular disease. It can help lower triglycerides, increase "good" cholesterol (HDL) levels, and improve blood lipid profiles.
- Epilepsy: The ketogenic diet, a type of low-carbohydrate diet, can be prescribed by a doctor to treat epilepsy, especially in children and adults whose epileptic seizures cannot be controlled with medication.
- Gastrointestinal Diseases: A low-carbohydrate diet may be recommended to reduce symptoms of some gastrointestinal diseases such as irritable bowel syndrome (IBS), Crohn's disease, and ulcerative colitis.
- Reduce Inflammation: This diet can help reduce inflammation in the body and improve joint and skin health in some people.
When prescribing a low-carbohydrate diet, it is important to consider the individual needs and characteristics of the patient.
Low carbohydrate diet for weight loss
A low-carbohydrate diet can be an effective method for weight loss because it helps reduce carbohydrate intake, which can lead to decreased appetite, lower insulin levels, and increased fat burning. However, in order to achieve results and safely follow a low-carbohydrate diet, it is important to follow the guidelines and suitable principles:
- Define your weight loss goal: Set a specific weight loss goal and determine how many pounds you want to lose. This will help you create a plan and measure your progress.
- Calculate your carbohydrate intake: Determine how many carbohydrates per day you are willing to consume. Typically on a low-carb diet, carbohydrate intake is between 20 and 50 grams per day, but this can vary depending on your goals and needs.
- Increase your protein and fat intake: Replace carbohydrates with protein and healthy fats. Protein satiates and helps preserve muscle mass, while healthy fats help you feel full and satisfied.
- Avoid foods high in sugar and starch: Eliminate sugar, bread, flour products, potatoes and other foods rich in carbohydrates from your diet.
- Increase your vegetable intake: Vegetables are high in vitamins, minerals and fiber and low in carbohydrates. Include them in your diet.
- Drink enough water: It is important to drink enough water to avoid dehydration and keep your metabolism running smoothly.
- Watch your portions: Optimal portion size will help you control your calorie intake and meet your needs.
- Keep track of your progress: Record your diet and weight to track your progress and make adjustments as needed.
- Keep physically active: Combine a low-carbohydrate diet with regular exercise to increase calorie burning and improve fitness.
- Consult your doctor: If you have any medical problems or are going on a long-term low-carb diet, consult your doctor or dietitian.
General information of the low-carb diet
A low-carbohydrate diet is a method of eating that reduces the intake of carbohydrates, especially fast carbohydrates such as sugar and starches. The main idea behind this diet is that it helps lower blood sugar and insulin levels, which can promote weight loss and improve overall health.
The essence of a low-carbohydrate diet can vary, and there are different variations of this diet. Some of them involve a very strict restriction of carbohydrate intake, while others allow moderate consumption of certain types of carbohydrates, such as lean vegetables and nuts.
The basic principles of a low-carbohydrate diet may include:
- Reducing sugar and sweets: This includes limiting the consumption of sugar, syrups, sugary drinks and sugary snacks.
- Limiting starch-containing foods: A low-carbohydrate diet often involves reducing the intake of starch-rich foods such as bread, potatoes, rice and pasta.
- Prioritize proteins and fats: A low-carb diet focuses on increasing protein intake and healthy fats such as olive oil, nuts, and avocados.
- Consumption of lean vegetables: Vegetables that are rich in fiber and low in calories are often recommended on a low-carbohydrate diet.
- Limit sugar-rich fruits: This diet may limit consumption of sugar-rich fruits such as bananas and grapes.
List of allowed foods on a low-carbohydrate diet
Here is a list of foods that are often included in a low carbohydrate diet. Remember that when following this diet, you need to control your carbohydrate intake and limit foods rich in carbohydrates:
Meat and meat products:
- Beef
- Pork
- Chicken
- Turkey
- Veal
- Rabbit
- Lamb
- Venison
- Sausage and sausages (no added sugar or starch)
Fish and seafood:
- Salmon
- Tuna
- Sardines
- Mackerel
- Mackerel
- Shrimp
- Mussels
- Squid
- Oysters
Eggs:
- Chicken eggs
- Duck eggs
- Turkey eggs
Low-carbohydrate dairy products:
- Cottage cheese (without added sugar)
- Buckwheat
- Kefir (no sugar added)
- Yogurt (no added sugar and low carbohydrate)
- Low carbohydrate cheeses (e.g., cheddar cheese, parmesan cheese, mozzarella)
Greens and low-carb vegetables:
- Spinach
- Cabbage (white cabbage, cauliflower, broccoli)
- Celery
- Asparagus
- Brussels sprouts
- Broccoli
- Cucumbers
- Colored peppers
- Tomatoes
- Mushrooms
- Spinach
- Avocado
- Green salad
Healthy Fats:
- Olive oil
- Coconut oil
- Avocado
- Peanut butter
- Apricot kernel oil
- Linseed oil
- Gee
- Jojoba oil
- Various nuts and seeds (walnuts, almonds, chia seeds, flax seeds, sunflower seeds)
Beverages:
- Water
- Tea (no sugar)
- Coffee (no sugar)
- Carbonated mineral water (without sugar)
Excluded foods or foods that should be restricted
- Sugar and sugar-containing products
- Bread and pastries
- Cereals high in carbohydrates (wheat, rice, potatoes)
- Pasta
- Sweets and candy
- Juices and carbonated drinks with sugar
- Fruits high in carbohydrates (bananas, grapes, dates)
Benefits
A low-carbohydrate diet can have several potential health benefits, especially in the following areas:
- Weight loss: One of the most well-known benefits of a low-carbohydrate diet is its ability to help people lose weight. This is achieved by restricting carbohydrate intake, which leads to a reduction in calorie intake and activates the fat burning process.
- Improving blood sugar levels: A low-carbohydrate diet can be helpful in controlling blood sugar levels. It can help prevent rapid fluctuations in glucose levels and reduce the need for insulin in people with type 2 diabetes.
- Lowering triglycerides: Carbohydrate restriction can lower blood triglyceride levels, which is a risk factor for cardiovascular disease.
- Increase "good" cholesterol: Some studies show that a low-carbohydrate diet can increase "good" cholesterol (HDL) levels, which is also a heart-healthy benefit.
- Improve insulin sensitivity: A low-carbohydrate diet can improve tissue sensitivity to insulin, which helps to utilize glucose more efficiently and control blood sugar levels.
- Appetite Reduction: Increased protein and fat intake in a low-carbohydrate diet can help reduce hunger and suppress appetite, which can make following the diet easier.
- Skin Improvement: Some people notice an improvement in skin health when following a low-carb diet, including a reduction in acne and inflammation.
- Reducing the risk of epileptic seizures: The ketogenic diet, a type of low-carbohydrate diet, may be effective in reducing the frequency and severity of epileptic seizures, especially in children.
What can and what can not?
On a low-carb diet, it is important to limit carbohydrate intake and focus on protein and fat sources. Here are general guidelines on what you can and should avoid on a low-carb diet:
What you can do:
- Protein: Meat (beef, pork, chicken, turkey, fish), eggs, low-carbohydrate dairy products (buckwheat, yogurt without added sugar, cottage cheese), tofu, soy products.
- Greens and low-carb vegetables: Broccoli, spinach, kale, asparagus, celery, cucumbers, eggplant, tomatoes, mushrooms, spinach, green salad and other low-carb vegetables.
- Healthy fats: Olive oil, avocado, nuts, seeds, coconut oil, apricot kernel oil.
- Nuts and seeds: Almonds,walnuts, cashews, chia seeds, flax seeds, sunflower seeds.
- Low carbohydrate dairy products: Milk and yogurt without added sugar, cottage cheese, low carbohydrate cheeses.
- Lean meat and fish products: Chicken fillet without skin, turkey, salmon, tuna.
- Drinking: Water, tea and coffee without sugar, carbonated mineral water.
What is best avoided or severely restricted:
- Carbohydrates: Sugar, sugar-containing products, bread, potatoes, cereals (buckwheat, rice, potatoes), pasta, bananas, grapes, dried fruit, sweet drinks.
- Gluten: For those watching their carbohydrate levels, it is best to avoid foods containing gluten such as wheat, barley and rye.
- Fast food and processed foods: Chips, carbonated drinks, snacks, ready meals, which are often rich in carbohydrates and trans fats.
- Alcohol: It contains carbohydrates and can affect blood sugar levels.
- Fruit: Some fruits, such as apples and pears, are high in carbohydrates and may be restricted on a low-carb diet.
It is important to remember that a low-carbohydrate diet can have different variations, and recommendations may vary depending on your specific meal plan and goals. Before starting such a diet, it is recommended that you consult with a doctor or dietitian to make sure it is right for you and your health.
Contraindications
A low carbohydrate diet may have certain contraindications and may not be suitable for everyone. Before starting such a diet, it is important to consult a doctor or nutritionist to make sure it is safe and suitable for your health. Here are some common contraindications for a low-carbohydrate diet:
- Type 1 diabetes: A low-carbohydrate diet may not be suitable for people with type 1 diabetes because they have low or absent insulin and may need carbohydrates to regulate blood sugar levels.
- Pregnancy and breastfeeding: During pregnancy and breastfeeding, it is important to get enough carbohydrates as they play an important role in the development of the baby. A low-carbohydrate diet during this period can be dangerous to the health of both mother and baby.
- Kidney problems: People with kidney problems may be contraindicated by the high protein levels sometimes found in low-carbohydrate diets.
- Cardiovascular disease: Depending on the low-carbohydrate diet option, it may be high in saturated fat, which may not be safe for people with cardiovascular disease or high cholesterol. In such cases, a heart-healthy diet may be more appropriate.
- Gastrointestinal Diseases: Some people with gastrointestinal diseases, such as Crohn's disease or ulcerative colitis, may have difficulty tolerating a low-carbohydrate diet because it may be more difficult to digest.
- Malnutrition: A low-carbohydrate diet can be associated with inadequate intake of important micronutrients and vitamins such as fiber, vitamin C, and folic acid. This can lead to malnutrition if the diet is not planned properly.
Possible risks
A low-carbohydrate diet, such as the ketogenic diet, can have a number of potential risks and side effects, especially if it is not followed correctly or used without medical supervision. Here are some of the possible risks:
- Ketoacidosis: This serious and life-threatening complication can occur when the level of ketones in the blood becomes too high. It can cause symptoms such as extreme thirst, nausea, vomiting, and even loss of consciousness. Ketoacidosis is most commonly associated with type 1 diabetes, but it can also develop when a ketogenic diet is not followed properly.
- Nutrient deficiencies: A low-carbohydrate diet can lead to deficiencies in important nutrients such as vitamins, minerals, and fiber. This can cause health problems such as deficiencies in vitamin C, folic acid, potassium and magnesium.
- Digestive problems: In some people, a low-carbohydrate diet can cause digestive problems such as constipation or diarrhea.
- Energy levels and physical activity: Some people may experience decreased energy levels and physical activity while following a ketogenic diet, especially at the beginning of adaptation.
- Loss of muscle mass: When the body is deficient in carbohydrates, it can begin to break down protein mass, which can lead to loss of muscle mass.
- Risk for certain groups: A low-carbohydrate diet may not be suitable for pregnant women, children, people with certain medical conditions (such as kidney or liver disease), and people with a history of cardiovascular disease.
- Social and emotional aspects: Following a strict low-carbohydrate diet can be socially and emotionally difficult because it limits food and meal choices, which can be stressful and uncomfortable.
Before starting a low-carbohydrate diet, especially a ketogenic diet, it is important to consult with a doctor or dietitian. A medical professional can help you evaluate whether this diet is right for you and warn you of possible risks. If you decide to follow a low-carbohydrate diet, it is important to do so with an eye on your health and under medical supervision, especially if you have any medical problems or conditions.
Menu for a week of low-carbohydrate diet
Below is a sample weekly menu for a low carbohydrate diet. This is just one option and you can vary the foods depending on your preferences and goals. It is important to keep an eye on the amount of carbohydrates you consume so that they do not exceed your target intake. Also remember to consume adequate amounts of proteins and fats.
Day 1:
- Breakfast: Omelet with spinach and cheese.
- Afternoon snack: Walnuts.
- Lunch: Salad with chicken breast, cucumbers, tomatoes and olive oil.
- Afternoon snack: Curd with berries.
- Dinner: Salmon with broccoli and lemon sauce.
Day 2:
- Breakfast: Buckwheat with nuts and coconut milk.
- Afternoon snack: Almond butter with cucumbers.
- Lunch: Tuna with artichokes and spinach salad.
- Afternoon snack: Avocado.
- Dinner: Chicken fillet with mushrooms and spinach.
Day 3:
- Breakfast: Yogurt without added sugar with berries.
- Afternoon snack: Almond Nuts.
- Lunch: Pork ribs with sugar-free ketchup and cauliflower.
- Afternoon snack: Canned tuna.
- Dinner: Salad with roast beef and avocado.
Day 4:
- Breakfast: Scrambled eggs with tomatoes and spinach.
- Afternoon snack: Cucumbers with guacamole.
- Lunch: Chicken soup with vegetables.
- Afternoon snack: Cottage cheese with nuts.
- Dinner: Salmon with sesame seeds and asparagus.
Day 5:
- Breakfast: Omelet with mushrooms and spinach.
- Afternoon snack: Walnuts.
- Lunch: Tuna and egg salad.
- Afternoon snack: Almond butter with cucumbers.
- Dinner: Pork with broccoli and peanut butter.
Day 6:
- Breakfast: Buckwheat with nuts and coconut milk.
- Afternoon snack: Almond Nuts.
- Lunch: Shrimp and avocado salad.
- Afternoon snack: Canned tuna.
- Dinner: Chicken fillet with broccoli and lemon sauce.
Day 7:
- Breakfast: Yogurt without added sugar with berries.
- Afternoon snack: Cucumbers with guacamole.
- Lunch: Chicken soup with vegetables.
- Afternoon snack: Cottage cheese with nuts.
- Dinner: Salad with roast beef and avocado.
Please note that this is just a sample menu and can be adapted to suit your needs. In addition, when following a low-carbohydrate diet, it is important to monitor your carbohydrate intake and follow the recommendations of your doctor or dietitian.
Low carbohydrate diet recipes
Here are some low carb recipes that you can incorporate into your diet:
-
Breakfast: Omelette with vegetables and cheese
- Ingredients:
- 2 eggs
- Low-fat cheese (to taste)
- Tomatoes, spinach, mushrooms or other vegetables (chopped)
- Spices to taste (black pepper, basil)
- Instructions:
- Beat the eggs and cook the omelet in a pan without oil.
- Add the vegetables and cheese.
- Cook until vegetables are soft and cheese is melted.
- Ingredients:
-
Lunch: Tuna and avocado salad
- Ingredients:
- Canned tuna in its own juice
- Half an avocado (sliced)
- Fresh cucumbers (sliced)
- Salad leaves
- Olive oil and lemon juice (for dressing)
- Instructions:
- Mix the tuna, avocado, cucumbers and salad leaves in a large bowl.
- Drizzle the salad with olive oil and lemon juice.
- Ingredients:
-
Dinner: Chicken thighs with vegetables
- Ingredients:
- Chicken thighs (2-4 pieces).
- Broccoli (a few florets)
- Potatoes (can be substituted for cauliflower potatoes if desired)
- Olive oil and spices (to taste)
- Instructions:
- Prepare chicken thighs, sprinkle with spices and fry in olive oil until golden.
- Separately cook broccoli and potatoes until tender.
- Serve the chicken thighs with the vegetables.
- Ingredients:
-
Afternoon snack: Buckwheat with cottage cheese and berries
- Ingredients:
- Buckwheat (boiled)
- Cottage cheese (non-fat)
- Fresh berries (strawberries, raspberries, blueberries, etc.).
- Honey (optional)
- Instructions:
- Mix together the cooked buckwheat and cottage cheese.
- Sprinkle with berries and add honey if you want to sweeten.
- Ingredients:
-
Snack: Walnuts and tangerines
- Ingredients:
- Walnuts (a handful)
- Tangerines (2-3 pcs.)
- Instructions:
- The nuts will provide you with healthy fats, and the tangerines will add some sweetness and vitamin C.
- Ingredients:
Here are some more recipes suitable for a low-carb diet:
-
Chicken kebab with vegetables:
- Ingredients: chicken breast, cauliflower, broccoli, paprika, olive oil, spices to taste (garlic, pepper, turmeric).
- Instructions: Cut chicken fillets into bite-sized pieces and season with spices. Thread the chicken pieces and vegetables onto skewers, brush with olive oil and grill or cook on the grill or in the oven until done.
-
Breakfast omelet with spinach and tomatoes:
- Ingredients: eggs, spinach, tomatoes, olive oil, salt and pepper.
- Instructions: Whisk the eggs and cook the omelet in a pan with olive oil. Add the sauteed spinach and sliced tomatoes. Pepper and serve.
-
Tuna salad "Nice."
- Ingredients: tuna in its own juice, lettuce leaves, boiled eggs, olives, cooked green beans, olive oil, lemon juice, salt and pepper.
- Instructions: Mix together tuna pieces, lettuce leaves, sliced eggs, olives and green beans. Season with olive oil, lemon juice, salt and pepper.
-
Curry with chicken and cauliflower:
- Ingredients: chicken breast, cauliflower, coconut milk, curry paste (sugar free), olive oil, salt and pepper.
- Instructions: Fry the chicken fillets in a frying pan. Add the sliced cauliflower and stir fry it. Then add the coconut milk and curry paste. Cook until the cauliflower is soft.
-
Greek salad with olives and feta:
- Ingredients: cucumbers, tomatoes, red onions, olives, feta, olive oil, vinegar, salt and pepper.
- Instructions: Slice cucumbers, tomatoes, red onions and olives. Add the sliced feta cheese. Season with olive oil, vinegar, salt and pepper.
These recipes represent only a small fraction of the low-carbohydrate meal options available. You can vary the ingredients and experiment with different recipes to suit your tastes and dietary needs.