When thinking of food and exercise, sometimes we are not sure what we should eat, how much we should eat, or how the things we eat will affect a regular exercise routine. I hope that the forthcoming information will help you answer some of these questions. The following is adapted from Lesli Bonci's book for coaches,
Sport Nutrition for Coaches, but is also helpful and applicable for those of us who are not. I'll begin by defining some terms then help you make informed decisions about which foods to choose.
Carbohydrates: there are 3 classes of carbohydrates - simple, complex, and high fiber foods. As a general rule, you want to stick with a diet higher in complex carbs and high fiber foods rather than simple carbs.
Examples of simple carbs: fruit, honey, table sugar, dairy, corn syrup. Although these are not necessarily bad for health
per se, it also does not take much energy to break down in your system -
translation - simple carbs will not keep you full.
Satiety is the goal; you don't want to eat constantly in order to feel satisfied and energetic.
Complex carbs and
high fiber foods will help you have that feeling of being satisfied, and will also "stick" with you throughout your day.
Examples of complex carbs: non-starchy (emphasis on the "non!") vegetables (green beans, broccoli, lettuce, tomatoes...), rice (white or brown), root vegetables (carrots, beets...), potatoes, yams, legumes, wheat
Examples of high fiber foods: corn, beans, nuts, fruits, veggies, oats
Fats: there are 3 categories of fat - saturated, unsaturated, and trans fat.
Unsaturated fat is the best type of fat for you, and where you want most of the fat in your diet coming from. It is associated with a
decreased risk of heart disease and systemic inflammation (i.e. what leads to high blood pressure). Excess
saturated and
trans fats in the diet are linked to an increased risk of heart disease. Excess
trans fat also has been observed to lower good cholesterol and increase bad cholesterol, and really should never be eaten.
Examples of saturated fat: skin on poultry, fat on meat, butter, cheese, cream
Examples of trans fat: stick margarine, baked goods, some ice creams, icing
Examples of unsaturated fat: there are 2 types of unsaturated fat -
monounsaturated: nuts and nut butters, olives, avocados;
polyunsaturated: oils (corn, safflower...), fatty fish (salmon...), walnuts; this fat is also high in Omega-3 and -6
Proteins: there are 2 types of proteins - complete and incomplete.
Complete proteins have all the essential amino acids that your body cannot produce on its own that you need in order to function;
incomplete proteins do not. It is important to have enough protein for tissue growth/repair, bone health, healthy immune system, etc., although it can be stored as fat in the body if eaten in excess.
Examples of complete proteins: meat (beef, veal, pork, lamb...), poultry (chicken, turkey...), fish/shellfish, eggs, dairy products, soy products
Examples of incomplete proteins: beans, grains (rice, pasta, bread, cereal...), seeds, veggies
It is important to know how much of each of these categories you should consume to have the energy you need to work out; when eating the
right types of food, weight loss generally takes care of itself. If you get the nutrition your body needs while you are exercising, and you discontinue a meal once you are full,
voila! you now have the combination for health and exercise that includes weight loss. So here is your crash course in "how much" you need!
Carbohydrates: The USDA recommends 45-65% of daily calories come from carbs; and absolutely no less than 130g of carbs per day. For the
general exerciser you will need 2.3 to 3g per pound (or 5 to 7g per kg) of body weight; for the
endurance trainer - 3 to 4.5g per pound (or 7 to 10g per kg) of body weight. Again, you want to stick to complex carbs and high fiber foods for the feeling of fullness to get through your day; however, if you need a quick pre-workout burst of energy, a piece of fruit or sports drink/gel (from the simple carb category) will do the trick!
Fat: USDA recommends a daily fat intake of 20-35% of daily calories; the issue is there are many of us who take in far more than that. So here is how you figure out what you need: weight in lbs x .45 = number of grams of fat per day; OR weight in kg x 1. A good place to start is to record how many grams of fat you ingest on a daily basis for one week,
then calculate what percentage you should be eating using the previously mentioned formulas. Within the 20-35% of your daily diet that comes from fat, there are specific percentages for the different
types of fat:
saturated fat (7-10%),
monounsaturated fat (at least 10%),
polyunsaturated fat (10%),
trans fat (you really didn't think you were going to have permission to eat this
did you :-) !!??)
Protein: USDA recommends 10-35% of daily caloric intake be from protein; unfortunately, as with fat, many Americans eat way too much of this also. For the
recreational exerciser you will need
.5 to .75g per pound (or 1.1 to 1.6g per kg) of body weight; for the
competitive athlete - .6 to .9g per pound (or 1.3 to 3g per kg) of body weight; for the
athlete who wants to increase muscle mass - .7 to .9g per pound (or 1.5 to 2g per kg) of body weight; for the
teenage athlete - .9 to 1.0g per pound (or 2 to 2.2g per kg) of body weight; for an
athlete in weight class sports (i.e. wrestling, etc.) - .9g per pound (or 2.0g per kg) of body weight.
If you take 10-15 minutes to calculate your food intake using the information provided via Dr. Bonci, this will save you from frustration for years to come. Figuring out your caloric intake will be a mystery no longer, you won't be left wondering if you ate everything you should have eaten during the day. You will feel more energetic for your workouts, and will begin to lose weight. This is easy to figure out, but will require discipline to carry out. Take the plunge and take control of your health, nobody else is going to do it for you!