The process by which our body converts food into the various nutrients we need to stay healthy is extremely complex. From the moment we eat a food until the nutrients are metabolized by our body, multiple mechanisms are activated, especially at the enzymatic and cellular level, which are extremely complex. Basal metabolism, however, is a much simpler concept to understand: keeping us alive requires a continuous expenditure of calories. This expenditure, which is not the same for everyone and depends on factors such as age, sex or weight, can be calculated very simply. Enter the values we ask you to enter in our calculator and then you will know your basal expenditure ⬇️
TMB Calculator (Basal Metabolism Rate)
When we need to assess the calories needed to maintain an adequate body mass index, it is essential that we assess two previous aspects, the types of metabolisms and the basal metabolic rate. All this, which may sound very complicated, is actually not so complicated. We have to understand that the simple fact of being alive, even if we are at rest or even asleep, requires the expenditure of certain energy. When we are asleep our breathing, our blood circulation or our neural activity does not stop. This energy expenditure, which is outside our physical activity, is what is known as the basal metabolism. Calculating how many calories are burned per day at rest helps us define our diet to achieve the energy balance we need to maintain an adequate weight.
How does the thyroid influence our metabolism?
Another key aspect to understand why metabolism is so complex is the thyroid, a very small gland that basically produces two hormones, known as “thyroid hormones” and whose names, if you are interested, are triiodothyronine and thyroxine. What is relevant about these hormones is that they play a key role in the metabolism of food. The hormonal imbalances caused in this small gland, which can be due to different reasons (although they usually have a strong genetic component), critically influence the way our body metabolizes each nutrient. It is important to see the appropriate specialists (in this case endocrine physicians) when we observe that, despite following a proper diet, our BMIs are not what they should be.
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