You do not actually need any sugar. It is a good energy source but you get nothing extra from it, and the other carbohydrates and fats in your diet will supply the energy.
Gram
It depends a lot on the person. Some people are diabetic and eat no sugar at all.
People actually need very little sugar, perhaps about 20 grams. Too much sugar can lead to metabolic syndrome which leads to poor health.
Many people do, especially if they celebrate the traditional "Day of the Death".
You don't NEED any sugar at all - your body creates sugar whenever you eat carbohydrates, and that's more healthy for you than eating sugar. You should get natural sugar from fruits and veggies instead of eating extra sugar.
32g a day
They need some in the morning to wake them up for the rest of the day.
40 g in a day
The recommendation for salt is no more than 2,300-2,400mg per day. As for sugar, when it comes to added sugars, it's best to have as little of that as possible. Natural sugars aren't bad for you, though. If you want an exact number you need each day, try talking to your doctor - sometimes some people need more/less sugar than others.
I have a cousin and a few friends who are diabetic, and they check their sugar levels a few times a day. You need to ask your doctor to be completely sure though.
If you mean added sugar, you should eat none. If you feel the need for something sweet, use a sugar substitute called stevia. If you are talking about sugars that occur naturally in foods, then you need to be counting carbohydrates.
because a human body looses energy during the whole day . sugar=energy :)
Right.