Fueling Workouts: In This Webinar…
- Role of sports nutrition
- Fuel and hydration in daily life
- Pre-workout fueling and hydration
- Post-workout fueling and hydration
- Fueling and hydration during regular and intense workouts
- Popular dietary and nutritional supplements for workouts
The Role of Sports Nutrition Is to Support Workouts
| Primary Goal |
Key Components |
| Achieve Goals |
Health/weight, Fitness, Performance |
| Energy |
Endurance, Intensity, Mental focus |
| Repair and Recovery |
Refuel, Rehydrate, Repair muscles |
| Injury Prevention |
Bone health, Joint health, Maintain form |
| Long-term Success |
Performance, Health/weight |
Sports Nutrition in Daily Life
Your everyday choices impact your workouts and fitness goals! And…spoiler alert! Daily nutrition is usually enough to support most people’s fitness programs without additional nutrition.
Here are components of energy and nutrients. Each of them is necessary for overall health and weight management and for supporting workouts.
- Energy (calories)
- Protein
- Carbohydrates
- Fat
- Vitamins
- Essential minerals
All-Day Nutrition to Support Workouts
Here is an overview of calories and macronutrients (protein, carbohydrates, and fats) and their roles in supporting physical activity.
Calories and Macronutrients
Enough energy and protein for workouts while managing weight
| Focus Area |
Function / Goal |
| Calories and Macronutrients |
Enough energy and protein for workouts while managing weight |
| Calories |
Enough energy within limits |
| Protein |
Muscle repair and recovery |
| Carbohydrates |
Quick and lasting energy supply |
| Healthy Fats |
Lasting energy, joint and cell recovery and repair |
Plate Method for All-Day Nutrition to Support Workouts
The plate method is a flexible tool for portion control and balanced meals without hassle.
| Component |
Fraction of Plate / Frequency |
Nutrients / Roles |
| Vegetables |
½ plate |
Vitamins, minerals, and fiber for stable energy and regularity |
| Lean Protein |
¼ plate |
Muscle repair and maintenance; provides stable energy |
| Starch / Grains |
¼ plate |
Primary energy and fuel; provides vitamins, minerals, and fiber |
| Healthy Fats |
Regularly include |
Joint health, cell repair, and lasting energy |
| Fruit |
Regularly include |
Antioxidants, vitamins, and quick energy |
| Reduced-fat Dairy |
Regularly include |
Bone health (calcium/Vitamin D) and protein |
Maintaining Hydration All Day Supports Better Workouts
Water is the most critical nutrient all day and for workouts. Roles include:
- Cooling through sweat
- Maintain blood volume for nutrient and oxygen delivery (easier circulation)
- Energy and concentration
- Muscle and joint function
Mild dehydration (2% of body weight) can decrease performance and cognition. To stay hydrated, drink water or other low-calorie fluids throughout the day.
Guidelines for within 2-3 hours before a workout are to drink 2-4 ml per lb body weight; that’s about 2-3 cups for a 200-lb person.
Fluid loss during exercise is about 0.3-2.4 L per hour, or about 1-10 cups per hour. That’s a big range! Needs are higher with more intense exercise, warmer weather, larger individuals, and people who naturally sweat more.
Electrolytes are essential minerals that support normal cell function. Functions include:
- Maintaining normal blood volume
- Maintaining normal water balance
- Allowing for normal muscle contraction/relaxation
These are four critical electrolytes and some food sources.
| Component |
Fraction of Plate / Frequency |
Nutrients / Roles |
| Vegetables |
½ plate |
Vitamins, minerals, and fiber for stable energy and regularity |
| Lean Protein |
¼ plate |
Muscle repair and maintenance; provides stable energy |
| Starch / Grains |
¼ plate |
Primary energy and fuel; provides vitamins, minerals, and fiber |
| Healthy Fats |
Regularly include |
Joint health, cell repair, and lasting energy |
| Fruit |
Regularly include |
Antioxidants, vitamins, and quick energy |
| Reduced-fat Dairy |
Regularly include |
Bone health (calcium/Vitamin D) and protein |
B Vitamins Are Essential for Energy Production
The “energy-producing” B vitamins support reactions in your body that produce energy from the food you eat. Some B vitamins act as “cofactors” to allow your body to break down food and generate energy. They support enzymes that allow metabolism to occur properly.
B vitamins are in a variety of foods.
- Grains
- Dairy
- Eggs
- Poultry and fish
- Nuts and seeds
- Beans and lentils
- Fruit and vegetables
“Energy-producing V vitamins” include:
- Vitamin B1 (thiamin)
- Vitamin B2 (riboflavin)
- Niacin (vitamin B3)
- Pantothenic acid (vitamin B5)
- Pyridoxine (vitamin B6)
- Vitamin B12
Note that taking in higher amounts of B vitamins won’t produce more energy unless you are deficient in B vitamins.
Checklist for All-Day Nutrition to Support Workouts
Using a simple checklist can help you check nutrition for supporting physical activity
Did I…
- Use the plate method to put meals together?
- Hydrate all day and before and after workouts?
- Eat a rainbow for antioxidants and nutrients?
- Include reduced-fat dairy for bone support?
Log in Lark to stay aware!
Pre-Workout Nutrition Is Individualized
General guidelines for eating before a workout are to have a small meal 2-4 hours before your workout, or to have a small snack 30-60 minutes before. Eat according to your hunger and experience - what has worked for you in the past?
Choose easily digestible foods that are low in fat, have low or moderate protein and are relatively low in fiber. Remember to hydrate!
Pre-Workout Nutrition
It’s an individual question! Consider…
- Hunger
- Blood sugar (if a consideration)
- Time of day
- Personal tolerance
- Daily variation can affect pre-workout needs
Pre-workout fueling depends on individual factors and your needs. Choose simple foods that are easy to digest
Daily variation can affect pre-workout needs, e.g.,
- Was the weather warm/cold?
- Were you especially busy and unable to hydrate properly?
- Did you wake up late and skip a meal?
Pre-Workout Nutrition
Choose simple foods that are easy to digest
- Oatmeal
- Bananas
- English muffin with jam
- Brown rice cakes
- Whole-grain bread
- Pretzels
- Nonfat yogurt
- Applesauce
Limit foods that are tougher to digest.
- Fried foods
- Fatty meats: hot dogs, sausage, bacon, salami
- Full-fat cheese
- Burgers, pizza
- Spicy foods
- Beans, lentils
- Oversized portions
Take notes to see what works for you!
Post-Workout Nutrition
Goals are to:
- Replenish glycogen (stored carbohydrate - fuel)
- Provide muscles with protein for recovery
- Restore lost fluids
Having a meal or snack with a ratio of 3:1 carbs:protein (3 grams of carbohydrates per 1 gram of protein) can support these goals. Aim for high-quality protein within 2 hours of finishing your workout.
For example, you might have…
- 45g carbohydrates and 15 grams of protein (240 calories)
- 60g carbohydrates and 20 grams of protein (320 calories)
Remember to rehydrate!
Sample Post-Workout Snacks: If your next meal is not soon…
- Yogurt and fruit
- Pretzels and low-fat cheese
- Whole-grain English muffin and 1 tablespoon peanut butter
- Whole-grain wrap with grilled chicken and vegetables
- Apple or banana and 1-2 low-fat string cheese sticks
- 1 hard-boiled egg and whole-grain crackers
- ½ cup of beans and 1-2 ounces of low-fat cheese
- ½ cup of low-fat cottage cheese and fresh fruit
- ¾ cup of whole-grain cereal with ¾ cup skim milk
- Snack mix with ½ oz nuts, grapes, whole-grain cereal
Sample post-workout meals: If your next meal is soon…
- Turkey/black bean burger on whole-grain bun with low-fat cheese, baked zucchini “fries” or carrot sticks
- Lentil or bean soup with vegetables, whole-grain roll or crackers
- Salmon or tilapia bowl with vegetables and brown rice bowl
- Green salad with cucumber and tomato, hard-boiled egg or tuna, low-fat cheese or beans, and vinaigrette dressing; piece of fruit
- Egg and egg whites with spinach or other vegetables, diced sweet potato or white potato, and avocado
- Whole-grain spaghetti with marinara sauce, shrimp or chicken, and a side salad
Calorie Calculation Example: Do you need extra calories after working out?
| Energy Balance and Weight Loss |
| Daily Deficit (Calories In < Calories Out) |
Rate of Weight Loss |
| 250 calories |
½ lb per week |
| 500 calories |
1 lb per week |
| 1000 calories |
2 lb per week |
Calories Burned
| Activity |
Estimated Calories Burned per 30 Minutes |
| 170 lb (77 kg) |
200 lb (90 kg) |
240 lb (110 kg) |
| Brisk walking (3.5 mph) |
166 |
195 |
234 |
| Jogging (5 mph) |
308 |
363 |
436 |
| Bicycling (12-14 mph) |
308 |
363 |
436 |
| Swimming laps (moderate) |
270 |
317 |
381 |
| Vigorous weight lifting |
231 |
272 |
327 |
| Yoga |
116 |
136 |
163 |
During Workouts
Hydration: ½-1 cup water per 15-20 minutes
| Factors Impacting Fluid Needs |
| More Fluid Needed |
Less Fluid Needed |
| Higher intensity exercise |
Lower intensity exercise |
| Warmer weather |
Cooler weather |
| Larger body mass |
Smaller body mass |
| Heavy sweating |
Lighter sweating |
Fuel is not usually needed
Hydration and Fueling During Long, Intense Workouts
Examples of high-intensity activities
- Running
- Hard cycling
- Lap swimming
- Singles tennis
- Basketball or soccer
Engaging in more than 60 minutes of high-intensity exercise at a time may lead to the need for additional attention. The general guideline is to take in 1.5-3 cups of fluids per hour, and electrolytes may be needed.
Food and Nutrient Supplements
| Category |
Potential Uses |
Concerns |
| Protein bars/shakes, energy gels/bars/shakes |
Convenience; can be easier on sensitive stomachs |
Cost
Gastrointestinal discomfort (e.g., bloating or gas)
Excess protein can strain kidneys
|
| Megadoses (vitamins or minerals) |
N/A |
Potentially harmful if taken in excess without deficiency |
| BCAAs - Branched-Chain Amino Acids |
Aimed at reducing soreness; muscle "sparing" |
Often unnecessary if total protein intake is adequate |
| B vitamins, vitamin D, iron, omega-3 fats |
Prevent or address deficiencies |
Should be guided by blood work or professional advice |
Most people can get enough protein, carbohydrates, and BCAAs from their regular food
Extra amounts don’t help if you’re already getting enough from your regular food
Popular Ergogenic Aids (Supplements)
| Supplement |
Potential Uses |
Side Effects / Risks |
| Caffeine |
Reduce perceived effort; improve focus and endurance |
Jitters, increased heart rate, sleep disruption, GI distress |
| Creatine |
Increase power output and muscle mass in short, explosive bursts |
Water retention (initial weight gain), mild stomach cramping if under-hydrated |
| Sodium bicarbonate |
Buffers acid in muscles to delay fatigue during high-intensity (1–7 min) |
Significant gastrointestinal discomfort |
Important Note: Dietary supplements are regulated differently than foods. Risks include:
- Mislabeling of concentration (higher or lower amounts than stated)
- Presence of toxins or other impurities
|
References
Thomas et al JAND Volume 116, Issue 3p 501-528 March 2016