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Ketogenic Diet: why they are not Recommended

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Diet

Ketogenic Diet

The ketogenic diet is one of the most popular miracle diets in recent years, a dietary option to lose weight quickly but is very controversial.

The ketogenic Diet began used as an anticonvulsant treatment in 1921. Over the years and with the appearance of drugs intended for this function, its use decreased. But in recent times, it has resurfaced again. And is in the world of weight-loss diets, low-carb eating plans attract attention. In addition to being low in carbohydrates, the ketogenic diet focuses on fat, which provides up to 90% of daily calories. This is not a type of Diet to experiment with.

How does a ketogenic diet work

The ketogenic Diet characterizes by its high lipid content, adequate protein and low carbohydrates. All this causes ketosis, a state that forces the body to seek alternative energy sources in the absence of carbohydrates. Some unsaturated fats such as nuts, seeds and olive oil are allowed, and vegetables with a low carbohydrate index such as spinach, cabbage or broccoli, foods with omega 3 such as sardines or salmon, or salmon protein in moderation, such as rabbit or white fish. Diets like the Atkins, Dukan, or Paleolithic could be considered ketogenic or low-carb diets.

On a ketogenic diet, instead of the body depending on sugar, which comes from carbohydrates, it relies on ketone bodies, a kind of fuel that the liver produces from stored fat. This diet use to help reduce the frequency of seizures in children. According to Harvard Medical School, only short-term results have studied and unknown longer-term effects.

Ketogenic Diet and Weight Loss

Following a diet of this type forces the body to look for energy in fat oxidation (as occurs during fasting) and, therefore, the consequent loss of power. The ketogenic Diet minimizes the consumption of carbohydrates, eliminating foods such as cereals and derivatives, tubers such as potatoes, legumes and processed flour products. If the amount of carbohydrates is between 50% and 60% of total calories under normal conditions, it reduces to 10% (50 grams per day) in a ketogenic diet. This amount reaches the consumption of fruits and vegetables in very controlled portions.

This is done to cause the body to enter a controlled state of hunger. At this time, the first step that the body follows is to pull down the glycogen stored in the liver. Once this glycogen spends, the body turns to fatty acids. Ketone bodies are produced in this process (acetate, acetone and b-hydroxybutyrate are the main ones), whose presence in the blood can have detrimental effects on the body when their formation prolongs over time.

The Six Risks of the Ketogenic Diet

The increase in the ketone body in the blood leads to dehydration and other metabolic disorders. In extreme cases, it can cause unexpected death due to arrhythmia, especially if there is a previous cardiovascular risk factor, as recognized by the Spanish Agency for Consumer Affairs, Food Safety and Nutrition ( AECOSAN ). Under normal conditions, with a balanced diet, the body manages the volume of fat that it burns and does typically not manufacture or use ketone bodies. This Diet forces the liver to work harder than necessary under normal conditions. The kidneys have to filter and excrete more blood of blood origin to expel leftover nitrogenous waste and ketone bodies.

More about ketogenic Diet

  1. Nutrient deficiency. Suppose the lack of certain foods is not well compensated by consuming various vegetables and fruits. In that case, there is a risk of micronutrient deficiencies, including selenium, magnesium, phosphorus and vitamins B and C.
  2. Short-term tiredness. The more immediate side effects of a ketogenic diet can involve fatigue and a feeling of physical weakness. In a state of ketosis, there may also be less performance in physical exercise. This is due to reducing glycogen stores, responsible for providing fuel.
  3. Digestive problems. The digestive system would suffer from diarrhea or constipation if the foods consumed vary. If a poorly varied diet maintains over time, gastrointestinal issues can perpetuate and increase.
  4. Difficulty sleeping. Difficulty falling asleep and, during the night, problems staying asleep may appear. Over time, however, sleep may improve. Insomnia is one of the biggest problems, especially at the beginning of the state of ketosis.
  5. Bad breath. This side effect causes by high levels of ketones in the body, especially acetone.
  6. Liver and kidney problems. The liver may have problems metabolizing the amount of fat, and the kidneys overload with protein.

The ketogenic diet was linked a few years ago, like other alternative diets, with anticancer effects. However, in a review of some of these diets published in the journal Anticancer Research, some not only do not contribute to improving the prognosis of cancer but can also compromise the nutritional status of patients.

Ketogenic Diet and Epilepsy

Although most cases of epilepsy controlled with medication, 20-30% of childhood epilepsies do not respond to this treatment. In these cases, the ketogenic diet has become an effective and well-tolerated treatment due to its neuroprotective and stabilizing effects. According to Neurology, in a randomized controlled study in patients with refractory childhood epilepsy, the ketogenic Diet shows an evolutionary activation of cognition and mood.

The metabolism of fatty acids generates a state of ketosis, which, according to the Spanish Epilepsy Society ( SEEP ), reduces the number of epileptic seizures. The experts assure that the metabolic changes would help the cellular metabolism activate biochemical and genetic programs in the brain in response to ketosis, reduce glucose, increase fatty acids, and improve mitochondrial bioenergetic reserves. Currently, data support the use of the ketogenic diet in infantile spasms, Rett syndrome, myoclonic seizures, or Dravet syndrome).

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