Low calorie diets and physical exercise


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A new year has begun, but it leaves behind a very hard Christmas and with it the much-feared extra pounds that must be reduced. The first step, join the gym, second step and more important than the first, go to the gym. Not only do you have to sign up, you not only have to want it, but you also have to do it.

This brings me to a point that I want to report on since in January the main objective is to reduce those extra pounds we do things that should not even cross our minds. Everyone wants a miraculous pill that is healthy and puts a body 10 overnight, some physical improvements of a world champion, but there is not so we have to work hard for that bikini operation that begins now.

Something that we must be clear from minute one, is exercise and nutrition go hand in hand, and since that is a truth like a temple and I am not a nutritionist, I am going to focus on the relationship between the two. The body needs a number of substances that it uses to exercise.

  • Phosphocreatine (PC) is the energy used for anaerobic exercises, this is stored in the muscle.
  • Glucose is the source used for the type of lactic anaerobic exercise, it is used in the absence of O2, and the reaction occurs in the cytoplasm, it gives pyruvic acid as the final product. Glucose metabolism is also produced by aerobic means with the presence of O2 through glycolysis, the Krebs cycle, and the electron transport chain, the last two are produced in the mitochondria.
  • Lipids are a great source of energy when the intensity is low, there is O2 to be able to catabolize fatty acids.
  • Proteins, this source of energy is almost nil, it occurs in fasting situations.

We must be careful with the diets we do, not only because of the side effects, nor trust 100% of those miracle diets, because they can have many references and are very good, but have medium and long side effects deadly time for our health. Low-calorie diets restrict the intake of carbohydrates, these hydrates are those that are stored in the liver and muscles in the form of glycogen through insulin, which we will use for exercise.

Diets that restrict this intake are trying to achieve the use of lipids more quickly and enter a state of ketosis. This state uses lipids as a source of energy for the brain and heart. Certain studies say that this is good and others say that it is bad, it is still not very clear or a consensus conclusion has been reached since the lack of information makes this state of ketosis still a mystery. What is clear is that the brain and heart can use ketone bodies for energy.

In my opinion, it is true that the state of ketosis is achieved by the metabolism of lipids, but from my point of view, this is achieved in an almost vegetative state, where the energy reserves are so low that the body needs these ketone bodies to obtain energy since the metabolization of lipids gives these ketone bodies as a product, which are discharged through urine and breath, causing kidney problems if prolonged over time. When the body needs these ketone bodies to obtain energy, it does not discard them and uses them as an energy source and does not discard them, it is when diets say that the body gets used to it and homeostasis (balance) occurs.

A-post-Christmas-diet As we have said before, physical exercise and nutrition go hand in hand, and these diets are not recommended if physical exercise is carried out because the body does not have glycogen to be able to do it and the people who do it feel tired, pain headache, nausea, dizziness, dehydration, electrolyte imbalances, increase in the neurotransmitter GABA, an inhibitory, relaxing neurotransmitter that reduces neuronal activation, and in extreme cases, heart failure and coma. We must know the context, the active life (of exercising) that we lead to know the type of diet that we should and need to do, for there are nutritionists who evaluate the conditions and the context in which we perform it. Many studies positively evaluate the ketogenic diet in the treatment of refractory epilepsy, as well as in people with obesity, but most people, if not one hundred percent, are not in this context, so this type of diet may It is not the solution to those extra pounds.

You want to achieve the goal, work hard for it, from my experience I tell you that nobody gives anything away, that what is lost quickly, quickly recovers and the diversity of opinions on diets or exercise routines is the diversity of opinions, carry out healthy diets, healthy exercise, go-to professionals and above all feel good doing what you do.

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