Nutritin, Training, and Ergogenic aids Flashcards
macronutrients
make up the largest part of the food we eat and supplys us with the energy we need for daily life and physical activities
examples of macronutrients
carbohydrates, proteins, and fats
carbohydrates
the energy source/fuel for our bodies
what is the most valuable/needed nutrient for humans
carbohydrates
what percent of our calorie intake should come from carbohydrates
55-60 per day
types of carbohydrates
simple (sugar), and complex (startch)
where should we get most of our carbohydrates and how much?
complex (startches)- 80%
complex carbs
are digested and absorbed more slowly, foods containing complex carbs also contain vitamins, minerals, proteins and fiber.
simple carbs
absorbe much faster and can cause large swings in blood sugar levels
glycemic index
measures the effect of carbohydrate containng foods effect on the blood glucose level, indicates the rate of carbohydrate digestion and its affects
what does it mean if a food has a high glycemic index
digested quickly and leads to a rapid rise in blood glucose
low, medium and high GI
Low (<55). medium (56-59), and high GI (70<)
dietary protein
molecules that make up a large portion of our bodies and are involved in virtually all of our bodies cellular functions
average amount of protein in an adult
10-12 kg mostly found in the muscles
how many amino acids do we consume
20
what are complete proteins
foods that contain all 20 amino acids ( come from animal products)
incomplete proteins
known as vegetable proteins and often contain one or more amino acids in limited amounts
function of proteins
hormones, enzymes, immune system, growth and repair, and the trasnportation system
what is the most energy dense macronutreint
dietary fats
dietary fats
are an immportant source of concentrated energy and are essential for athlete during rest or low intense activity (both saturated (animal sources) and unsaturated (plant based))