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Nutrition Basics

There are 3 macronutrients that the human body needs in order to function properly.

A) Carbohydrates:

Carbohydrates are your body's main source of energy. Most people that are overweight and are on low fat/high carbohydrate diets got into that condition because they are eating too many carbohydrates. Too many carbohydrates cause a huge release of insulin. When there is too much insulin in the body, your body turns into a fat storing machine. Therefore, it is important that we eat no more carbohydrates than necessary and that we eat the right amount and types of carbohydrates. Now that we have talked about the importance of having just the right amount of carbohydrates, let's talk about which are the best sources of carbohydrates. Carbohydrates are divided into complex carbohydrates and simple carbohydrates. The complex carbohydrates give you sustained energy ("timed release") while the simple carbohydrates gives you immediate energy. It is recommended that you eat mainly complex (low glycemic) carbohydrates throughout the day except after the workout where your body needs simple (high glycemic) carbohydrates in order to replenish its glycogen levels immediately, something that will aid faster recuperation and rebuild of the muscle. Below is a Glycemic Index Food Chart for your ready reference. Low Glycemic Index food (less than 55) Foods with GI index between 55 and 70 are consider intermediate High Glycemic Index food GI (more than 70)

 

Food List

Rating

Food Glycemic Index 

Bakery Products

Croissant

Medium

67

Waffles

High

76

Doughnut

High

76

Beverages

Soya milk

Low

30

Apple juice

Low

41

Carrot juice

Low

45

Pineapple juice

Low

46

Grapefruit juice

Low

48

Orange juice

Low

52

Biscuits

Digestives

Medium

58

Wafer biscuits

High

77

Breads

Multi grain bread

Low

48

Whole grain

Low

50

Pita bread, white

Medium

57

Pizza, cheese

Medium

60

Hamburger bun

Medium

61

Rye-flour bread

Medium

64

Whole meal bread

Medium

69

White bread

High

71

White rolls

High

73

Baguette

High

95

Breakfast Cereals

All-Bran

Low

42

Porridge, non instant

Low

49

Oat bran

Medium

55

Muesli

Medium

56

Mini Wheats (wholemeal)

Medium

57

Shredded  Wheat

Medium

69

Golden Grahams

High

71

Puffed wheat

High

74

Weetabix

High

77

Rice Krispies

High

82

Cornflakes

High

83

Cereal Grains

Pearl barley

Low

25

Rye

Low

34

Wheat kernels

Low

41

Rice, instant

Low

46

Rice, parboiled

Low

48

Barley, cracked

Low

50

Rice, brown

Medium

55

Rice, wild

Medium

57

Rice, white

Medium

58

Barley, flakes

Medium

66

Taco Shell

Medium

68

Millet

High

71

Dairy Foods

Yogurt low- fat (sweetened)

Low

14

Milk, chocolate

Low

24

Milk, whole

Low

27

Milk, Fat-free

Low

32

Milk ,skimmed

Low

32

Milk, semi-skimmed

Low

34

Ice-cream (low- fat)

Low

50

Ice-cream

Medium

61

Fruits

Cherries

Low

22

Grapefruit

Low

25

Apricots  (dried)

Low

31

Apples

Low

38

Pears

Low

38

Plums

Low

39

Peaches

Low

42

Oranges

Low

44

Grapes

Low

46

Kiwi fruit

Low

53

Bananas

Low

54

Fruit cocktail

Medium

55

Mangoes

Medium

56

Apricots

Medium

57

Apricots  (tinned in syrup)

Medium

64

Raisins

Medium

64

Pineapple

Medium

66

Watermelon

High

72

Pasta

Spaghetti, protein enriched

Low

27

Fettuccine

Low

32

Vermicelli

Low

35

Spaghetti, whole wheat

Low

37

Ravioli, meat filled

Low

39

Spaghetti, white

Low

41

Macaroni

Low

45

Spaghetti, durum wheat

Medium

55

Macaroni cheese

Medium

64

Rice pasta, brown

High

92

Root Crop

Carrots, cooked

Low

39

Yam

Low

51

Sweet potato

Low

54

Potato, boiled

Medium

56

Potato, new

Medium

57

Potato, tinned

Medium

61

Beetroot

Medium

64

Potato, steamed

Medium

65

Potato, mashed

Medium

70

Chips

High

75

Potato, micro waved

High

82

Potato, instant

High

83

Potato, baked

High

85

Snack Food and Sweets

Peanuts

Low

15

M&Ms (peanut)

Low

32

Snickers bar

Low

40

Chocolate bar; 30g

Low

49

Jams and marmalades

Low

49

Popcorn

Medium

55

Mars bar

Medium

64

Table sugar (sucrose)

Medium

65

Corn chips

High

74

Pretzels

High

81

Dates

High

103

Soups

Tomato soup, tinned

Low

38

Lentil soup, tinned

Low

44

Black bean soup, tinned

Medium

64

Green pea soup, tinned

Medium

66

Vegetable and Beans

Asparagus

Low

15

Broccoli

Low

15

Cauliflower

Low

15

Celery

Low

15

Cucumber

Low

15

Eggplant

Low

15

Green beans

Low

15

Lettuce, all varieties

Low

15

Low-fat yogurt, artificially sweetened

Low

15

Peppers, all varieties

Low

15

Snow peas

Low

15

Spinach

Low

15

Tomatoes

Low

15

Zucchini

Low

15

Soya beans, boiled

Low

16

Peas, dried

Low

22

Kidney beans, boiled

Low

29

Lentils green, boiled

Low

29

Chickpeas

Low

33

Black-eyed beans

Low

41

Chickpeas, tinned

Low

42

Baked beans, tinned

Low

48

Kidney beans, tinned

Low

52

Lentils green, tinned

Low

52

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B) Protein

Every tissue in your body is made up from protein (i.e., muscle, hair, skin, and nails). Proteins are the building blocks of muscle tissue. Without it, building muscle and burning fat efficiently would be impossible. Its importance is paramount. Protein also helps increase your metabolism every time you eat it by 20%! It also makes the carbohydrates timed release, so you get sustained energy throughout the day.
Everybody that is involved in a weight-training program should consume between 1 and 1.5 gram of protein per pound of lean body mass. That means, a person who weighs 150 lbs. and has 15% body fat, should consume at least ~130 grams of protein (150 less 15% X 1) through the day divided almost proportionately between the 4-6 meals.
Good examples of protein are listed below (A portion is the roughly the size of your open palm).

Fish & Seafood
Seafood is one of the best sources of protein because it's usually low in fat. Fish such as salmon is a little higher in fat but it is the heart-healthy kind: omega-3 fatty acids.

White-Meat Poultry
Stick to the white meat of poultry for excellent, lean protein. Dark meat is higher in fat. The skin is loaded with saturated fat, so remove skin before cooking.

Milk, Cheese Yogurt
Not only are dairy foods excellent sources of protein but they also contain valuable calcium. Choose skim or low fat dairy to keep bones and teeth strong, prevent osteoporosis and enhance weight loss.

Eggs
Eggs are one of the least expensive forms of protein. The American Heart Association says normal healthy adults can safely enjoy an egg a day.

Beans
One-half cup of beans contains as much protein as 3 ounces of broiled steak. Plus, these nutritious nuggets are loaded with fiber to keep you feeling full for hours.

Pork Tenderloin
This great and versatile white meat is 31% leaner than 20 years ago.

Soy
Twenty-five grams of soy protein daily can help lower cholesterol and reduce the risk of heart disease. Combine soy protein foods like tofu with a healthy low fat diet.

Lean Beef
Lean beef has only one more gram of saturated fat than a skinless chicken breast. Lean beef is also an excellent source of zinc, iron and vitamin B12.

Protein on the Go
Grab a meal replacement drink, cereal bar or energy bar, check the label to be sure the product contains at least 20 grams of protein, and is low in sugar and fat.

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C) Fats

All the cells in the body have some fat in them. Hormones are manufactured from fats. Also fats lubricate your joints. So if you eliminate the fat from your diet, then your hormonal production will go down and a whole array of chemical reactions will be interrupted. Your body will then start accumulating more body fat than usual so that it has enough fat to keep on functioning. Since testosterone production is halted, so is muscle building. Therefore, in order to have an efficient metabolism we need fat. There are three types of fats: Saturated, polyunsaturated, and monounsaturated.

a) Saturated Fats: Saturated fats are associated with heart disease and high cholesterol levels. They are found to a large extent in products of animal origin. However, some vegetable fats are altered in a way that increases the amount of saturated fats in them by a chemical process known as hydrogenation. Hydrogenated vegetable oils are generally found in packaged foods. In addition, coconut oil, palm oil, and palm kernel oil, which are also frequently used in packaged foods and non-dairy creamers are also highly saturated.

b) Polyunsaturated Fats: Fats that do not have an effect in cholesterol levels. Most of the fats in vegetable oils, such as corn, cottonseed, safflower, soybean, and sunflower oil are polyunsaturated.

c) Monounsaturated Fats: Fats that have a positive effect on the good cholesterol levels. These fats are usually high on the essential fatty acids and may have antioxidant properties. Sources of these fats are Fish Oils, Virgin Olive Oil, Canola Oil, and Flaxseed Oil. We like to refer to these types of fats as good fats. Twenty percent of your calories should come from good fats. Any less than 20% and your hormonal production will go down. Any more than 20% and you start accumulating plenty of fat. Good sources of fat are canola oil (1 tablespoon), natural peanut butter (2 tablespoons), olive oil (1 tablespoon), flaxseed oil (1 tablespoon), and fish oils (1 tablespoon). Each serving size contains approximately 14 grams of fat.

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D) Water

Water is by far the most abundant substance in our body. Without water, an organism would not survive very long.

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