The goal of the ketogenic diet is to put the body into a state of ketosis, in other words, forcing the body to obtain energy from the breakdown of fat deposits.What are the principles of the ketogenic diet?What does a sample menu look like?
The ketogenic diet is not a typical weight loss diet.It was created for medical purposes to help relieve various conditions, such as drug-resistant epilepsy.It may also be used to support certain other conditions (such as Dravet syndrome, Rett syndrome, Douz syndrome, or tuberous sclerosis and insulin resistance).
It's not entirely clear why a ketogenic diet reduces the symptoms and frequency of seizures.Experts suspect this may be because ketone bodies protect nerve cells from free radical attack.
However, its weight loss properties soon came to be appreciated.Currently, the ketogenic diet is very popular among athletes competing in various competitions, such as bodybuilding.
The ketogenic diet is a fairly fast way to lose weight – you can even lose up to 1kg in a week.However, it is useful before starting a diet to familiarize yourself with its principles and to use it correctly without endangering your health.It is much safer to use under the supervision of a doctor or nutritionist.
Ketogenic Diet: What is it?What do you eat?
The keto diet is based on the assumption that if the body does not accept carbohydrates, it will start looking for other sources of energy, which in this case will be ketone bodies formed during the breakdown of fat.However, fat is an energy-rich substance that is more difficult to digest.
This state of the body is called ketosis.During ketosis, the body draws energy from available energy and begins burning accumulated fat - that is, it eliminates unnecessary weight.
Good to know: The ketogenic diet and epilepsy
The anticonvulsant effects of the ketogenic diet are likely the result of a shift in neuronal metabolism to the burning of ketone bodies, as well as the effects of free fatty acids on neuronal cell membranes, and the result of a reduced glucose supply.This results in changes in nervous system metabolism and transmission, leading to reduced neuronal excitability.
The ketogenic diet, also known as the ketogenic diet, is a diet high in fat, moderate protein, and low in carbohydrates.Research shows that diet is very effective in weight loss.This diet results in fat burning without the energy sessions typical of this period.
The mechanism of action is based on achieving a state of ketosis.This condition requires a significant reduction in carbohydrates in order for the body to obtain energy from the breakdown of accumulated fat.
- what is ketosis
Ketosis encourages the liver to produce ketone bodies.Low blood sugar causes the formation of tiny energy molecules called ketones, which are made from fat.During dieting, these ketones provide fuel to our bodies.
Due to ketosis, fat is broken down and the body uses it as energy for current needs.The state of ketosis is achieved by reducing carbohydrate consumption.Everyone's intake may vary slightly - most commonly, ketosis occurs when carbohydrate intake is reduced to 50 grams per day.
What types of ketogenic diets are there?
There are many types of ketogenic diets:
- Standard (SKD) - Calories in this version are broken down into: 75% fat, 20% protein, and 5% carbs.
- High-Protein Keto Diet – This keto diet has a slight increase in protein, breaking down calories into 60% fat, 35% protein, and 5% carbohydrates.
- The Cycling (CKD) diet consists of 5 days of keto and 2 days of carb loading, a version used by, among other things, professional bodybuilders.
- Targeted (TCD) is another option that allows you to consume more carbohydrates during training.
In this article, we’ll focus on the standard ketogenic diet, which is the most studied of the above varieties.
Operating principles, essence and basic rules
The most important element of the ketogenic diet is planning and purchasing good quality and suitable foods from which we can get all our macronutrients.
- Limit carbohydrates – Ketones are produced when the amount of sugar in the blood is restricted; daily carbohydrate intake should not exceed 20-50 grams.
- Use healthy fats - the less processed the better, and definitely avoid margarine and processed oils - these contain trans fats which are not very good for our bodies.
- Fat sources on the keto diet should be:
- Saturated fats: animal fats (knuckles, bacon, chicken legs, lard, steak);
- Coconut oil (MCT – a great source of medium chain fatty acids);
- Dairy products, etc.;
- Monounsaturated fats: olive oil, olives, nuts;
- Polyunsaturated fats: omega-3 (supplement form), fish (in moderation due to heavy metals), flaxseed oil, flax seeds, chia seeds, avocado, sesame seeds, eggs.
- Don't overdo it with protein - the upper limit for dietary protein is 35% of total calories, and too much can interfere with the transition to ketosis and overload the kidneys and liver.
- Protein sources should be:
- Animal protein: beef, pork, veal, lamb, poultry (including skin, fat, etc.), sausage (verified source), bacon, etc.
- Fermented dairy products (if no estrogen excess or intolerance is an issue): cheese, cottage cheese, etc.
Another important aspect is purchasing flaxseed oil.Due to its unsaturated acid content, the oil is very sensitive to temperature, light, and other factors that can oxidize the oil and destroy its essential nutritional and beneficial properties.Under no circumstances should you buy flaxseed oil that has been stored at room temperature on store shelves.Such storage robs it of its nutritional value.
- Supplements - You can take vitamin and mineral supplements (such as Omega-3) during your diet.Skipping grain products and some fruits can lead to nutritional deficiencies.However, this varies from person to person and of course depends on the foods you eat and your eating habits.We can certainly use weight loss pills in addition to the essential vitamins and minerals - remembering, of course, that they are only a supplement to a balanced diet.
- Sources of carbohydrates on the ketogenic diet include:
- Fiber: wheat bran, broccoli, spinach and other vegetables;
- Any green and low-carb vegetables: broccoli, spinach, squash, tomatoes, peppers, etc.;
- Fruit* (up to 10 g per day): raspberries, apricots, plums, apples, etc.
Fruit is not a necessity on the ketogenic diet, but due to its rich nutritional value and fructose content, it's worth eating an apple or a few plums a day.Carbohydrates on a ketogenic diet are strictly controlled, and vegetables should not be added "blindly" in the early stages of the diet.
The body needs to reach a state of ketosis, and too many carbs can prevent this from happening.Remember, carbohydrates are found not only in vegetables and fruits, but also in nuts, bran, protein supplements and other products, and their ingredients should be strictly controlled.
The ketogenic diet is associated with rapid weight loss without feeling hungry.However, unchecked use of the ketogenic diet can actually be very harmful.Anyone considering this diet should weigh the pros and cons.
What foods you can eat: List
The state of ketosis occurs when there is no sugar in the blood, so obviously you should eat low-carb foods.First, you should make a list of foods that are allowed on the ketogenic diet.
- Fish and seafood - especially fatty ones - will provide you with plenty of protein and healthy fats (including omega-3s). Regular consumption of marine fish can increase toxin contamination in the body. If possible, choose wild fish.
- Eggs are a product that can be prepared in different ways: boiled, fried, scrambled or stir-fried.Of course, if you have such an opportunity, try to buy eggs from free-range chickens.
- Dairy – Cheese and cottage cheese are popular in the diet; unfortunately, you should avoid milk – the sugar it contains can quickly increase your carbohydrate intake.
- Butter – The ketogenic diet is rich in fat, supplemented by olive oil, coconut oil, and ghee.Fatty spreads or sauces are highly recommended during this diet.However, try making them yourself using healthy fat sources.
- Nuts and seeds are a good source of fat and make great snacks.You can choose from macadamia nuts, pecans, Brazil nuts, walnuts, pistachios, almonds, and sunflower seeds.
- Vegetables – A healthy diet should certainly include vegetables.The first rule of thumb when choosing keto vegetables is to choose vegetables that grow above the ground.Green leafy vegetables are especially recommended.The diet should include cauliflower, broccoli, Brussels sprouts, zucchini, avocado, olives, peppers, cabbage, spinach, asparagus and lettuce.
- Fruits - along with vegetables provide the body with essential vitamins and minerals.However, you need to be especially careful with fruits during the ketogenic diet to avoid overdosing on carbohydrates.Low-carb fruits include blackberries, strawberries, raspberries and blueberries.
- Tea – Drink a cup of green tea every day, which contains substances that remove toxins from the body and promote fat burning.
When eating dinner at a restaurant or cafe, instead of asking for French fries or a side of potatoes, just ask for an extra side of fresh vegetables.
Keto diet: What foods you shouldn’t eat
Unfortunately, like almost any diet, it requires us to make some sacrifices and give up foods we've used regularly so far.
If you're not sure whether a product is safe to eat, check the carbohydrate content.Too much sugar will prevent you from entering a state of ketosis - meaning all your efforts will be wasted.
- Sugary Drinks – Water should be your best friend from now on.For flavor, you can add lemon, lime or mint juice.
- Sugar – If you can’t imagine your morning coffee without this additive, opt for a sweetener instead.
- Alcohol – High-sugar drinks should especially be avoided.You'll notice an increased sensitivity to alcohol on the ketogenic diet - just a few hard drinks can have the same effect on you as a full bottle on a traditional diet.
- Bread - Unfortunately, grain bread is not an option.However, you can make your own keto bread—all you need is coconut flour, eggs, salt, baking powder, and spices.
- Rice and pasta are rich in carbohydrates; instead, you can make fries with kohlrabi or green beans.
The keto diet requires limiting carbohydrate foods, but you can easily find keto recipes for many delicious foods, including ice cream and cakes, that you can eat on the keto diet.
Side effects and consequences
Although the ketogenic diet is considered healthy initially, some side effects may occur.They usually last about a week - that is, until the body adjusts to the new diet.
One common complaint is the so-called keto flu.The term is often used to describe symptoms of the adjustment period when the body switches energy intake from carbohydrates to fat.
Keto flu, also called carb flu, may include:
- weakness;
- Headache;
- sleep problems;
- Discomfort from the gastrointestinal tract;
- Muscle pain and cramping.
This period generally lasts about a week, and the adjustment period experienced by each person may be different.However, not everyone will suffer from the “keto flu” – it depends on the individual’s physical fitness and the balance of their diet.The correct functioning of electrolyte metabolism is particularly important.
In addition, it should be remembered that long-term use of the keto diet can cause side effects such as: constipation, acne, drowsiness or irritability, increased cholesterol and the formation of kidney stones.
This happens because the ketogenic diet is deficient in many essential nutrients—vitamins, minerals, and fiber.It's common for people who decide to try this diet to add supplements.
It also highlights the dangers associated with the accumulation of methylglyoxal and its by-products, which are considered risk factors for blood vessel and tissue damage.
High amounts of fat in the diet can cause dysmotility in the intestines, leading to persistent pain in the lower abdomen.
People following the ketogenic diet often complain of frequent urination.Gout and increased uric acid levels may occur after long-term dieting.
Contraindications
The ketogenic diet is a low-carb, high-fat diet.The fat content in daily diet is as high as 90%!Is the ketogenic diet safe?
First of all, it should be emphasized that this nutrition is intended for healthy people who do not suffer from chronic diseases.Many diseases require special diets, consult a specialist if:
- diabetes;
- you are taking medications, such as those for high blood pressure;
- you are pregnant or breastfeeding;
- The ketogenic diet is definitely not recommended for people with problems with the liver, kidneys, and pancreas, as these organs are subject to a lot of stress from ketone body metabolism.
Additionally, doctors and nutritionists warn that this diet can disrupt hormonal balance.
Keto Diet - A Sample Menu for Women to Lose Weight in One Week
Despite some limitations, the ketogenic diet doesn't have to be boring.When thinking about your diet, it’s worth planning out a suitable ketogenic diet menu in advance.
Therefore, a healthy menu for the week is a great solution.You can then plan your meals appropriately and buy food for the entire week in advance.
So what does this ketogenic diet menu sample look like?To help you get started on the ketogenic diet, here are weekly ketogenic menus that you can tailor to your personal nutritional needs.
Remember to eat only when you are hungry.If you don't need snacks, skip them.
Table: Daily meals for one week on the ketogenic diet
| first breakfast | second breakfast | Lunch | Afternoon tea snacks | dinner | |
| 1 day | 3 eggs omelette, fried in butter + a few slices of bacon or bacon + pickled cucumbers. | A handful of nuts or almonds.(Up to 20 almonds or small nuts and 10 large nuts, such as macadamia or pecans). | Fried zucchini with ham.Sauté the zucchini and ham in olive oil and add the garlic, chopped onions and tomatoes.Serve with grated Parmesan or other cheese. | Full-fat, natural yogurt with flaxseeds or chia seeds.(Add up to two teaspoons of seeds). *Optional: some blueberries or raspberries (not recommended during acclimation period). |
Chicken Salad.Cut chicken breasts into strips and fry in melted butter or lard and your favorite spices.Chop lettuce leaves and mix with tomatoes, cucumbers and peppers.Add fried chicken.Drizzle balsamic vinegar over salad. |
| the next day | Ham or other sausage containing more than 90% meat.Salad with chopped tomatoes, onions and olive oil. | A smoothie made with half a cup of coconut milk and a handful of raspberries or blueberries. | Pork neck or pork knuckle baked in lard and onions.Eat meat with lots of sauce + pickles or sauerkraut. | Serve chopped vegetables (e.g. celery, cucumber, tomatoes, peppers) with marinara sauce (natural or Greek full-fat yogurt with garlic and spices). | Grilled salmon with salad greens, drizzled with olive oil and lemon juice. |
| The third day | Omelet with bacon, tomatoes and cucumber. | Greek yogurt or full-fat plain yogurt with a handful of nuts (such as pecans, Italian nuts, or macadamia nuts). | Grilled chicken with blanched broccoli and yogurt or garlic sauce. | Half an avocado and sprinkle with lemon juice. | Place roasted pork loin and vegetables in a frying pan and fry in lard or ghee.(Ready-made store-bought frozen mixes can be used as vegetables, provided they don't contain potatoes). |
| 4 days | Full-fat natural yogurt with a small amount of nuts or any seeds (sesame, sunflower, chia). | A handful of pumpkin or sunflower seeds.They should be natural, not fried or pickled. | Halibut is baked in foil with herbs, lemon juice and asparagus. | Several quality sausages.A few cherry tomatoes or radishes. | Green salad with half an avocado, tomatoes, any spices and olive oil.Cut all ingredients into cubes, add olive oil and mix. |
| 5 days | 2 eggs omelette with cheese, onions and mushrooms.Fry in coconut or ghee. | handful of nuts + ½ avocado. | Grilled chicken legs with rosemary and onions.Serve with tomatoes and onions.Eat chicken legs with the skin on. | Greek yogurt with a handful of sunflower or pumpkin seeds. | Grilled Cod with Lemon Sauce.Cook the Brussels sprouts. |
| The sixth day | Salad with tuna, tomatoes, diced avocado and olive oil.Season with your favorite herbs. | Greek yogurt or full-fat natural yogurt with a handful of raspberries or blueberries (not a suitable fruit for acclimation). | Braised pork neck or shoulder with peppers and mushrooms.Chop the meat and vegetables, fry in oil and cook in a pan until tender, add any spices to taste. | A smoothie made with half a cup of coconut milk and raspberries or blueberries. | Mozzarella with tomatoes, arugula and basil drizzled with a generous drizzle of olive oil. |
| Day 7 | 3 egg omelette, fried in butter and served with diced fresh pepper. | A handful of pumpkin or sunflower seeds.They should be natural, not fried or pickled. | Grilled trout with lemon juice and avocado slices. | 2 cups of any vegetable - cucumbers, tomatoes, radishes. | Shrimp are simmered in melted butter with garlic and parsley.Assorted lettuce salad, drizzled with lemon juice and olive oil. |
notes.The above menu is just an example and does not specify proportions or preparation methods.
As you can see, the low carb diet menu is truly varied and delicious.Of course, you don’t have to follow the rules 100% and you can change them if necessary, as long as we only use foods that are allowed on the ketogenic diet.
Low-carb meals are quick and easy to prepare, so daily prep doesn't take much time.
Is the ketogenic diet safe during pregnancy?
Pregnant women should remember to keep their ketogenic diet healthy and balanced.In practice, this means that the daily menu during pregnancy should contain all necessary nutrients.
Unfortunately, the ketogenic diet largely eliminates the carbohydrates that pregnant women provide, such as magnesium, B vitamins, and dietary fiber.
It is also worth emphasizing that this deficiency is also serious, since during pregnancy carbohydrate requirements increase by about 1/3 of the standard requirements.
Additionally, during pregnancy, the need for fat increases by 20-30% (depending on the trimester of pregnancy).
What supplements are best for the keto diet?
- MCT oil is a medium-chain triglyceride, the "sugar" of fat.
In fact, MCT's energy is absorbed very quickly and converted into energy immediately, just like sugar.MCT oil helps significantly increase the amount of dietary fat.
- Magnesium – This mineral plays a very important role in our health.
It increases energy, strengthens the immune system, controls blood sugar levels, and, in the case of a ketogenic diet, reduces the risk of muscle cramps that may occur at the beginning.
- Vitamin D isn’t just limited to people on the ketogenic diet.
Modern lifestyle, indoor living and stress are just some of the factors that deplete this vitamin.This vitamin may be especially important in cases of calcium deficiency because it aids in calcium absorption.
- Exogenous Ketones – Can accelerate the achievement of ketosis in the early stages of a ketogenic diet.Some scientists believe they may also suppress appetite, making it easier to lose weight.
Like most such diets, the ketogenic diet has its pros and cons.However, given that traditional and ketogenic diets work slightly differently, it pays to choose a balanced diet that best suits our body’s needs and functions.
With this method of weight loss, we can achieve the healthiest results (up to 1kg per week), improved health and well-being, and long-lasting results.
Important!Not all diets are healthy and safe for our bodies.Even if you don't have any health problems, it is recommended that you consult your doctor before starting any diet.When choosing your diet, never follow modern fads.Keep in mind that certain diets, including those low in certain nutrients or severely restricted in calories, can be debilitating, putting you at risk for eating disorders, and can increase appetite, causing a rapid return to previous weight levels.