Why do we feel hungry?

Okay, so this would be a rational thing coming up in one’s mind for sure if you would have read our previous blog – Things You Should Know About Macronutrient | The Science Behind Diet.  Now, if you have not – then we’ll let you know a fact –  an average human body can store kgs of fat easily and it being the highest calorie providing macro nutrient, gives the human body an opportunity to survive for months without having the food, well… only mathematically though, not literally. So, the reflex question to come up on this would definitely be – Why do we feel hungry then?


Basic Metabolism Rate

Let’s start from the beginning, to stay alive, body and mind should need to function properly. Basic Metabolism Rate is the minimum amount of energy one need to survive, condition he/she doesn’t do even a bit of any physical exercise. There are basic three fuels to our body – carbs, fat and protein. All of them can be broken down to yield energy. Remember –


1g Carbs     = 4 cal

1g Fat         = 9 cal

1g Protein = 4 cal


So, mathematically, if your BMR(Basic Metabolism Rate) is suppose 1800 calorie, then you might be alive by 200g of fat itself when it has kilos to spare.


Hunger – A NeuroSignal

Now, we all know that our brain is complex and most vital body organ, hence it requires a specific treatment.

Just like any high end car say, Lamborghini Aventador S that doesn’t run on normal gas/fuel, instead takes premium gas to rev and move(some may call it fly). Our brain follows the same notion. This premium gas for our brain are nothing but carbohydrates. Only carbohydrates and ketones(to an extent) are the ones that can charge our brains up. Similarly there are other vital body parts like liver etc that need at least small amount of a particular macro-nutrient to function properly and therefore to make you alive.

Thus, our body is made in a such way that doesn’t allow that deficit to happen. It follows a strategy. As soon as the food taken is digested in and burned into calories, it start sending the neurosignals to brain in quest of more food and we call this quest as hunger.


Three states of Metabolism

  • Fed State – It begins once our belly is full and our mind is happy. It continues for certain hours, basically till the time the food is completely digested. This time depends on person to person depending on the body type and metabolism rate.
  • Fasting State – This is the state when you are on the quest of food and feeling hungry, even though your body has enough fuel to keep you charged. It’s the stage when whole of the digestion is over, food is all used up or stored.

    Fun fact : Do you think that is why we kept the name of the first morning meal as Break-fast.

  • Starvation -It occurs when eating does not occur for an extended range of time. At this state, you body try to save energy as low as possible, even slows your mind – brain takes hell lot of energy to function.


Never starve
Never starve


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