label reading
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Label Reading. Food and Beverages for Health and Performance Holly Grant, RD IOC, Sports Nutrition Diploma. Overview. Fueling for Sport Review Nutrition Label Serving Size Carbohydrates Sodium Fat Activity. Hmmmmm…. What does “healthy” food mean to you? - PowerPoint PPT PresentationTRANSCRIPT
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Label ReadingFood and Beverages for Health and Performance
Holly Grant, RD
IOC, Sports Nutrition Diploma
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Overview
• Fueling for Sport Review
• Nutrition Label
• Serving Size
• Carbohydrates
• Sodium
• Fat
• Activity
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Hmmmmm….
What does “healthy” food mean to you?
How do you know if a food is “healthy”?
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What does eating for performance mean to you?
What foods do you choose before, during, after training/competition?
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A Quick Review
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Fueling Review Daily: • 6-10 g/kg carbs• 0.8-1.6 g/kg protein• 0.8-1.0 g/kg fat (<= 30% daily calorie intake)
Before: 200-300 g carbs 2-3 hours before – Bagel with peanut butter/jam, 2 cups milk, banana
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Fueling Review During: 30-60 g/hour carbs (events lasting > 60 minutes)
– 2 sports gels– 500-800 mL sports drink
After: • 1-1.2 g/kg carbs (try to eat within 30 minutes)• 10-15 g protein
– Turkey sandwich, glass milk, fruit– Peanut butter and banana sandwich, milk
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CHO’s Before Racing • Eat 2-4 hours before racing
– Allows for stomach emptying/intestinal absorption/liver glycogen storage
– Try meal replacements like Boost if don’t tolerate solids
• Pre-race meal should be:– Easy to digest (not too much fibre, fat or protein)
– High in carbohydrates (lower GI-slow release of sugar)
– Familiar
– Adequate in fluid
Target: 1-4 g/kg
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CHO’s Before Racing • Carbohydrate loading the “traditional way” is not
necessary (intense exercise followed by low carb diet)
• Event lasting over 90-120 min
• Three days before race:– 3-4 day exercise taper– Focus on primarily CHO’s– Minimum activity and lots of rest in 3 days prior to
maximize CHO stores
Target: 10-12 g/kg/day
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CHO’s During Racing
• CHO’s ingested during:– Delay fatigue– Maintain intensity– Improve endurance performance
• Necessary for events over 60 minutes– 90 minutes is point where CHO’s can be used up
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CHO’s During Racing
• Heat, altitude, cold weather, dehydration can all deplete CHO’s faster
• Important if did not consume enough CHO’s prior to exercise
• Target: 30-60 g/hour (max muscles can oxidize)– 2 Sports Gels– 500-800 mL of sports drink– Sports bar– 2-4 pieces of bread
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Carbs During Racing
• Make sure you are fuelled up prior to the last 30 minutes of predicted finish time
• Plan your fueling strategy– How often?– What food/fluids?
• Practice during training
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CHO’s After Racing
• Glycogen stores may be depleted after training/racing
• For efficient recovery– Important if have to race or train again within 24 hours– Try to consume food within 2 hours of training– Adding protein can increase carb storage
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CHO’s After Racing
• If have >24 hours until training– Consume water/sports drink with snack within 1-2 hours– Resume with normal meal patterns
• If have <24 hours until training (double workouts etc)– Consume water/sports drink with snack within 20-30
minutes
–Target: 1-1.2 g/kg every hour up to 4 hours
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CHO’s After Racing
• Higher GI CHO’s are broken down and absorbed faster– Higher fibre carbs may decrease the amount of sugar
available for storage (we don’t absorb fibre)
50 - 75 g carbohydrate recovery snacks – (1-1.2 g/kg)
• Turkey sandwich, glass milk, fruit
• Chicken breast, potato, veggies, water
• Peanut butter and banana sandwich, milk
• Yogurt with cereal, fruit, water
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Fluid and Hydration
Sweat rate: can be 1-2 L per hour• Gender• Temperature/humidity• Intensity/duration • Training/acclimatization • Size/surface area
• Hard to give “one size fits all” guidelines
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Fluid and Hydration
Signs of Dehydration• Dry mouth• Fatigue• Lightheaded• Muscle Cramps• Thirst• Decreased Performance
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How to stay hydrated
• You must start hydrated• Cannot play “catchup” during race
– As you sweat you are losing more fluid
• “Pee test”
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How to stay hydrated
• Huge debate in literature on planned hydration vs using thirst as a cue
• “Blanket guidelines” may not be appropriate– Huge biological and environmental differences
• The goal is not to replace all weight loss– Stay within the <1-2% water loss
– You will lose some mass from glycogen oxidation (releases water)----don’t need to replace this
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How to stay hydrated
• 2-4 hours before exercise
– 480-600 ml or (5-7 ml/kg)
• 30 minutes before exercise
– 300-480 ml
• During exercise
– 180-300 ml every 15-20 minutes
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How to stay hydrated
During: Needed if >45 mins duration
Goal: replace 80% of loses during
Hot weather: 400-800 mL/h
Cold weather: 300-700 mL/h• Test this during training for individual needs
• Consume every 15-20 minutes
–Don’t wait until you feel “like crap”
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How to stay hydrated
After: Replace 150% of loses• Obligatory urine production • Important if training within 24 hours after loss
1 kg lost= Replace with 1.25-1.5 L fluid
Best results:• Consume in 500 mL every 30 minutes for 2 hours• Beverage has to contain sodium to help retain fluid
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Hydrating after a marathon
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Where do we get our Nutrition Information ?
• 75% Product Labels
• 47% Physicians
• 31% Fitness Programs
• 28% Registered Dietitians
Canadian Council of Food and Nutrition (CCFN)
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Three parts of a label?
1. Ingredient List
2. Nutrition Facts
3. Nutrition Claims
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Ingredient List
• All ingredients are listed by quantity from the most to the least - the ingredient in largest amount is listed first.
• Helpful when checking for specific ingredients eg for allergies, religious beliefs, health reasons,
etc.
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Nutrition FactsStandard Format
Easy to find and read
Provides information on calories and 13 other nutrients
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Which foods have Nutrition Facts?
• Almost all pre-packaged foods will have Nutrition Facts
• Some exceptions:– fresh fruit and vegetables– raw meat, poultry, fish and seafood– foods prepared or processed at the store
• e.g. bakery items, sausage, salads– foods that contain very few nutrients
• e.g. coffee beans, tea leaves, spices– alcoholic beverages
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Serving size
• the specific amount of food listed under the “Nutrition Facts” title
• all nutrient information is based on this amount of food
• listed in common measures you use at home
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Nutrition Facts are based on a specific amount of food. Compare this to the amount you consume.
Label1 single serving bottle of orange juice(minimum 350 mL)
At home350ml in glasses
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% Daily Value• based on general 2000kcal
diet
• can make it easier to compare foods
• nutrients on a scale from 0%-100%
• helps you see if a food has a lot or a little of a nutrient
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Use % Daily Value to see if a food has a lot or a little of a nutrient
The actual numbers can be confusing, for example:
• 2 mg of iron seems small but it is 15 % of the Daily Value for iron
• 110 mg of sodium seems large but it is only 5 % of the Daily Value for sodium
• % Daily Value makes it easy to see if there is a lot or a little of a nutrient without having to do any math.
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Nutrition Claims
They are: Regulated statements made when a food meets certain criteria (problems with this……?)
Optional
Often on the front of food packages
A quick and easy way to get information about a food
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Nutrition Claims: 2 types
• Nutrient Content Claims
• Diet-related Health Claims
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Nutrition content claims: When you want to decrease the amount of certain nutrients
Free• none or hardly any of this nutrient• an example is “sodium free”
Low• a small amount• an example is “low fat”
Reduced• at least 25% less of the nutrient than a similar product• an example is “reduced in Calories”
Light• can be used on foods that are reduced in fat or
reduced in Calories
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Nutrition content claims: When you want to increase the amount of certain nutrients
Source• contains a useful amount of the nutrient • an example is “source of fibre”
High or good source
• contains a high amount of the nutrient• an example is “high in vitamin C”
Very high or excellent source
• contains a very high amount of the nutrient• an example is “excellent source of calcium”
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Diet Related Health Claims:
• "A diet low in saturated and trans fat reduces risk of heart disease".
• "A diet with adequate calcium and Vitamin D, and regular physical activity, reduces risk of osteoporosis".
• "A diet rich in vegetables and fruit reduces risk of some types of cancer".
• "A diet low in sodium and high in potassium reduces risk of high blood pressure".
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Serving size• You make two tuna
sandwiches from this can.
• How many Calories will you get from the tuna in two sandwiches?
Light Tuna 170 g in water (120 g drained weight)
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CarbohydratesCarbohydrates
Also known as: (“ose”) – Sucrose– Fructose– Galactose– Lactose– Maltose– Starch– Fibre
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Carbohydrate
Starch + Sugar + Fibre=
Total Carbohydrate
1 serving= 15 g carbohydrates
1 slice bread
½ cup cooked rice
½ cup cooked pasta
30 g cold cereal
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How many servings of carbohydrates?
Tim Horton's Honey and Wheat Bagel
Serving size 114 g
Calories 300
Total Fat 3 g
Saturated 0.4 g
Cholesterol 0
Sodium 600 mg
Total Carbohydrates 60 g
Dietary Fibre 4 g
Sugar 6 g
Protein 10 g
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Sugar? Fibre?Kellogg’s All Bran Bran Flakes Kellogg’s Two Scoop Raisin Bran Flakes
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Carbohydrate Tips
Daily:• Make at least ½ your grains
choices whole grains• Choose cereals with less than 9
grams of sugar per serving more often
• Aim for greater than 3 grams fibre per serving – 25-35 grams of fibre each
day• Watch portion distortion (e.g.
bagels)
Before training:• < 3 g fibre if experience
gastrointestinal discomfort • Choose complex carbs for
sustained energy
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Sodium• Daily Limit 2,300 mg/day
– 1 tsp salt
• Select foods with Daily Value of <5% to 15%
• Some athletes may need to increase sodium intake if have high sweat rates/high sodium loss (can lose 1g/hour in sweat)
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Sodium Amount Sodium
Pretzels 10 1029 mgSoy Sauce 1 tbsp 902 mgCambell's Chicken Noodle Soup Bowl 345 g 870 mgLean Cuisine Chicken Fettuccine 1 pack 630 mgTomato Juice 1 cup 653 mgSlice pizza 1 slice large 570 mgRagu Pasta Sauce 1/2 cup 480 mgSide Kicks Asian Teriyaki Noodles 1/2 cup 400 mgTuna 3 oz 287 mgCherrios 1 cup 213 mgSports Drink 1 cup 210 mgKetchup 1 tbsp 167 mgSkim Milk 1 cup 103 mgApple 1 1 mg
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Fat
• A source of energy during endurance exercise
• Vitamins A, D, E, K
• Avoid large amounts of fat before competition or practice
• Sits in stomach • Limit deep fried food (trans fat)• Fast food not great choice
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• THE GOOD (daily)
– Unsaturated
• THE ‘BAD’ (small amount)
– Saturated
• THE UGLY (avoid)
– Trans Fats
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Look beyond the ClaimsDid You Know?
• Kraft Peanut Butter has always been:
– Cholesterol free
– Lactose free
– Gluten free
– Kraft Peanut Butter is low in saturated fat and is free of cholesterol, trans fat and gluten.
Ingredients: Select roasted peanuts, corn dextrin, sugar, salt, hydrogenated vegetable oil
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The new way of eating..1. Don’t eat food your great grandmother wouldn’t recognize
2. Avoid foods with “high fructose corn syrup”, “hydrogenated oil” or “partially hydrogenated oil”
3. Don’t eat food with more than 5 ingredients or ingredients you can’t pronounce
4. If it can sit on your shelf for 5 years and not go bad….don’t eat (Eat foods that will eventually rot)
5. If you just add boiling water (or microwave) and it’s ready to eat…..don’t eat it