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Thursday 21 February 2013

How to tell which foods will make you fat! Know your Glycemic Index numbers!

           
          So I was talking with a couple guys today and it kind of dawned on me that there needs to be a more in-depth conversation on carbs with you.  We all know how I feel about carbs, and for more information you can view my previous blog (if you haven't I recommend you do before reading this, but you won't have to) by clicking here! But today let's explain it a little bit further, and better yet, let's start looking at food in this way so we ensure a healthy diet, great healthy weight loss and lean muscle gains!

             Before we start! I do not go completely carb free.  This is one huge mistake people can make.  Yes it is true that it does  lead to quicker weight loss, but you will also put weigh back on quickly when you start eating carbs again (one major pitfall of the atkins diet).  This can lead to yo-yo dieting and much less safe alternative.  I often recommend low carb diets that incorporate slow carbs with low GI numbers.  You can have carb free days, but there are some days you need slow carbs to be incorporated  ESPECIALLY if you don't take a cheat day.

          I will quickly give you the summary of carbs.  Unlike what you might think, fat rarely makes you fat, but it is rather carbs that make people fat.  Carbs are things like Bread, Pasta, Candy and sugars.  When you eat foods like this you put your body into fat storing mode and open up pathways for these nutrients to become love handles.  They do this by spiking your insulin levels which in turn activates a compound called GLUT 4 which is basically the guy holding the doorway to tubby town.  Take note, carbs are drastically different in terms of quality.  Many foods are given a Glysemix Index (GI) number, and this will essentially rank food as a bad carb.  It's simple, A bad carb will have a high GI number and load.  A healthier carb will have a low GI number and load. Keep in mind these are easy small changes from things like white rice to brown rice that can drastically increase your weight loss.  Not to mention that low GI foods make you feel full longer, and you will eat less!


            Below you will find a chart provided by Harvard that works great for evaluating foods!  If you see foods that aren't here try googling them, product's GI numbers are relatively easy to find for almost any food!  Thanks Harvard!

Cheers! Ryan

           Note: white bread (~ 70) is known for being fairly awful.  Aim for foods with at least a lower GI number than this with the ideal being around 50 or less.  Take notice also of nuts and beans being awesome carb sources for diets (~30)

*For anyone dealing with blood sugar issues or is a diabetic, you should always consult your doctor before adjusting your carbohydrate levels.

FOODGlycemic index (glucose = 100)Serving size (grams)Glycemic load per serving
BAKERY PRODUCTS AND BREADS
Banana cake, made with sugar476014
Banana cake, made without sugar556012
Sponge cake, plain466317
Vanilla cake made from packet mix with vanilla frosting (Betty Crocker)4211124
Apple, made with sugar446013
Apple, made without sugar48609
Waffles, Aunt Jemima (Quaker Oats)763510
Bagel, white, frozen727025
Baguette, white, plain953015
Coarse barley bread, 75-80% kernels, average34307
Hamburger bun61309
Kaiser roll733012
Pumpernickel bread56307
50% cracked wheat kernel bread583012
White wheat flour bread713010
Wonder™ bread, average733010
Whole wheat bread, average71309
100% Whole Grain™ bread (Natural Ovens)51307
Pita bread, white683010
Corn tortilla525012
Wheat tortilla30508
BEVERAGES
Coca Cola®, average63250 mL16
Fanta®, orange soft drink68250 mL23
Lucozade®, original (sparkling glucose drink)95±10250 mL40
Apple juice, unsweetened, average44250 mL30
Cranberry juice cocktail (Ocean Spray®)68250 mL24
Gatorade78250 mL12
Orange juice, unsweetened50250 mL12
Tomato juice, canned38250 mL4
BREAKFAST CEREALS AND RELATED PRODUCTS
All-Bran™, average553012
Coco Pops™, average773020
Cornflakes™, average933023
Cream of Wheat™ (Nabisco)6625017
Cream of Wheat™, Instant (Nabisco)7425022
Grapenuts™, average753016
Muesli, average663016
Oatmeal, average5525013
Instant oatmeal, average8325030
Puffed wheat, average803017
Raisin Bran™ (Kellogg's)613012
Special K™ (Kellogg's)693014
GRAINS
Pearled barley, average2815012
Sweet corn on the cob, average6015020
Couscous, average651509
Quinoa5315013
White rice, average8915043
Quick cooking white basmati6715028
Brown rice, average5015016
Converted, white rice (Uncle Ben's®)3815014
Whole wheat kernels, average305011
Bulgur, average4815012
COOKIES AND CRACKERS
Graham crackers742514
Vanilla wafers772514
Shortbread642510
Rice cakes, average822517
Rye crisps, average642511
Soda crackers742512
DAIRY PRODUCTS AND ALTERNATIVES
Ice cream, regular57506
Ice cream, premium38503
Milk, full fat41250mL5
Milk, skim32250 mL4
Reduced-fat yogurt with fruit, average3320011
FRUITS
Apple, average391206
Banana, ripe6212016
Dates, dried426018
Grapefruit251203
Grapes, average5912011
Orange, average401204
Peach, average421205
Peach, canned in light syrup401205
Pear, average381204
Pear, canned in pear juice431205
Prunes, pitted296010
Raisins646028
Watermelon721204
BEANS AND NUTS
Baked beans, average401506
Blackeye peas, average3315010
Black beans301507
Chickpeas, average101503
Chickpeas, canned in brine381509
Navy beans, average311509
Kidney beans, average291507
Lentils, average291505
Soy beans, average151501
Cashews, salted27503
Peanuts, average7500
PASTA and NOODLES
Fettucini, average3218015
Macaroni, average4718023
Macaroni and Cheese (Kraft)6418032
Spaghetti, white, boiled, average4618022
Spaghetti, white, boiled 20 min, average5818026
Spaghetti, wholemeal, boiled, average4218017
SNACK FOODS
Corn chips, plain, salted, average425011
Fruit Roll-Ups®993024
M & M's®, peanut33306
Microwave popcorn, plain, average55206
Potato chips, average515012
Pretzels, oven-baked833016
Snickers Bar®516018
VEGETABLES
Green peas, average51804
Carrots, average35802
Parsnips52804
Baked russet potato, average11115033
Boiled white potato, average8215021
Instant mashed potato, average8715017
Sweet potato, average7015022
Yam, average5415020
MISCELLANEOUS
Hummus (chickpea salad dip)6300
Chicken nuggets, frozen, reheated in microwave oven 5 min461007
Pizza, plain baked dough, served with parmesan cheese and tomato sauce8010022
Pizza, Super Supreme (Pizza Hut)361009
Honey, average612512

The complete list of the glycemic index and glycemic load for more than 1,000 foods can be found in the article "International tables of glycemic index and glycemic load values: 2008" by Fiona S. Atkinson, Kaye Foster-Powell, and Jennie C. Brand-Miller in the December 2008 issue of Diabetes Care, Vol. 31, number 12, pages 2281-2283.

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