hello everyone i'm Nima welcome to my youtube channel
in this video i'm going to talk about calories so if you want to learn more
about calories you're in the right place and keep watching this video
we all have heard the term calorie for instance this thing has that many calories or a banana
has 105 calories or we might have heard of calories in another way like running two miles
three miles would burn this many calories but what exactly is a calorie first of all i have to say
each calorie is actually one kilo calorie and each kilo calorie is 1000 small calories but because
those small calories are very very small and we rarely use them we now call each kilo calorie
one calorie that was a lot of kilo calories and calories so i hope you understand what i just said
and it's good to know that the nutrition fact labels are actually measured in kilo calories
and each calorie is the energy required to heat one kilogram of water one degree celsius
a calorie is an energy unit that is very necessary for us humans and we all need different amount
of calories per day your calorie intake depends on your age gender height weight and a lot more
factors just like a car that needs fuel to function our bodies need calorie in order to
function a calorie is the amount of energy locked up in foods in proteins fats and carbohydrates
and when your body digests the foods those calories become available and your body can use
them as an energy source and you should remember this when you're eating something that says 50
calories per serving on the label of it your body would not absorb all that 50 calories why because
our bodies need more time and energy to digest some foods and it would need less time and energy
to digest some other foods for example couple sticks of french fries has about 100 calories
and from that 100 calories our bodies can absorb 90 to 95 of them but something like celery that
has about 100 calories our bodies can only absorb 70 to 75 of them because celery has a lot of fiber
and it requires more time and energy to digest on average we burn our calories like this and
these numbers are not exact it's just an average 10 percent of our daily intake goes to digestion
30 of our daily intake goes to physical activities and 70 of our daily calorie intake goes to body
functioning like our basic metabolic process different type of macronutrients have standard
amount of calories each gram of fat contains 9 calories each gram of protein has 4 calories and
each gram of carbohydrates has 4 calories so if an ingredient contains 25 grams of fat 7 grams of
protein and 12 grams of carbohydrates this means that ingredient has 301 calories or is better to
say 301 kilocalories and a medium sized apple has 95 calories medium sized banana has 105 calories
medium sized orange has 65 calories one slice of 14 inch pizza has 285 calories
one cup of cooked white rice has about 210 calories one whole chicken breast has 425 calories
100 grams of salmon has 208 calories and a cup of coke has about 128 calories
some ingredients like coke has a lot of calories but it doesn't have much minerals and nutrients
we call them empty calories because they mostly contain calories and nothing else
so how many calories do we need think of it this way we all have income and outcome calories income
calories are the food that you eat and outcome calories are the calories that you burn and when
your income and outcome are exactly the same so let's say you consume 2 000 calories and in
the end of the day you burnt 2 000 calories this means your weight would not change at all if your
income is more than your outcome like you consume 2 500 calories but you only burned 2 000 of them
500 calories left so those 500 calories would turn into fat and your body would store them in your
hip belly and thighs if your outcome is more than your income let's say you consume 2 000 calories
but you burned 2 500 calories in this scenario your body actually used some of those store fats
in your belly thighs and hip and it doesn't really matter how many calories you need the thing that
matters is that you should be able to burn all the calories that you consumed per day and as i
said in the beginning of the video each person's calorie intake is different than from others
and your calorie intake depends on your age gender height weight and a lot more factors
for calculating your ideal weight you should use the bmi formula or body mass index formula
i would make a separate video about bmi so make sure to subscribe to my youtube channel
so you won't miss any videos that i upload alright everyone thank you for watching this video if you
have any comments or questions please leave a comment down below thank you and see you soon