Nutrition
Facts
Here's some
factual information for your dietary curiosity. First and foremost
I promote reading and analyzing food labels! Single
serving = bullshit (unless you're really obedient or
determined). As a habit it is customary to exceed the set serving
"limit." Judge on how much you're actually going to eat
(break out the calculator baby - but keep in mind, this tool is
not always necessary). =)
Remember...these
values are close estimates and not completely acccurate. The same
goes for all food labels.
Let's begin
with the all popular baked product, Saltine Crackers. I recommend
the fat free, low sodium crackers.
Amount:
1 Cracker
Kilocalories:
12
Total fat: 0 g
Cholesterol: 0 mg
Sodium : 20 mg
Potassium: 4 mg
Carbohydrates: 3 g
Protein: 0 g
Calorie
Breakdown:
Calorie:
A unit of energy. The amount of energy it takes to raise the temperature
of 1 gram of water 1 degree Celsius (1.8 degrees Farenheit). In
relation to food however we do not use the unit in its small state.
Instead Kilocalories (kcal) is used. In reference to exercise and
burning calories, the same state of the unit is used.
Fun Fact!: 1,000
calories = 1 kilocalorie
Carbohydrates,
protein, fat, and (less often) alcohol make up a calorie.
1
g Carbohydrates = 4 kcal
1 g Protein = 4 kcal
1 g Fat = 9 calories
In our example
of the cracker only the carbohydrates contribute to the caloric
makeup (4 x 3 = 12).
The calories
are burned during metabolic processes where enzymes break the carbohydrates
into glucose and other sugars, protein into amino acids, and fats
into gylcerol and fatty acid. They are then transported to cells
to be asorbed and immediately used or embark the final process of
metabolism, are stored and later released for energy.
The average
amount of kilocalories a person needs to eat in a day is 2,000.
As for vitamins and minerals, we have the RDA (Recommended Dietary/Daily
Allowances, for the US):
| |
Female |
Male |
| Protein |
50 g |
63 g |
| Vitamin
A (retinol) |
700 µg |
900 µg |
| Thiamine
(Vitamin B1) |
1.1 mg |
1.2 mg |
| Riboflavin
(Vitamin B2) |
1.1 mg |
1.3 mg |
| Niacin
(Vitamin B3) |
14 mg |
16 mg |
| Pantothenic
acid (Vitamin B5) |
5 mg |
5 mg |
| Vitamin
B6 |
1.3 mg |
1.3 mg |
| Vitamin
B12 |
2.4 µg |
2.4 µg |
| Vitamin
C |
75 mg |
90 mg |
| Vitamin
D |
5 µg |
5 µg |
| Vitamin
E |
15 mg |
15 mg |
| Folacin |
400 µg |
400 µg |
| Biotin |
30 µg |
30 µg |
| Calcium |
1000 mg |
1000 mg |
| Phosphorus |
700 mg |
700 mg |
| Selenium |
55 µg |
70 µg |
| Iron |
18 mg |
10 mg |
| Zinc |
8 mg |
15 mg |
| Magnesium |
310 mg |
400 mg |
| Iodine |
150 µg |
150 µg |
| Fluoride |
3 mg |
4 mg |
| Potassium |
2 g |
2 g |
That's all for
now but the obsession continues. . .
|