Unit 1: Nutrition Intro Flashcards
Ergogenic Acid
any ingested or employed element used to improve performance (e.g., creatine monohydrate for strength training)
Supplements
dietary product used to supplement a deficiency in the diet (e.g., multi-mineral/vitamin pills)
Diet
nutrient and non-nutrient intakes, consumed by the mouth
Nutrition
all physiological processes that occur once food/drink enters the body to nourish tissues
Nutrient
any substance that provides nourishment and helps maintain bodily homeostasis
Energy-yielding nutrients
yield usable energy in the form of calories; includes carbohydrates, protein, and fat (alcohol is an energy yielding non-nutrient at 7 kcal/g)
Non-energy yielding nutrients
do not contain calories, but are still essential to bodily functions; includes water, minerals and vitamins
Macronutrient
consumed in relatively greater quantities to prevent deficiencies and maintain optimal bodily function; includes carbohydrates, protein, fat, and water
Micronutrient
consumed in relatively small quantities to prevent deficiencies and maintain optimal bodily function; includes vitamins and minerals
Fitness eating
Fitness competitors often focus on optimized nutrient timing and quantities for aesthetics or single-day events such as a 5K
Sport performance eating
Athlete nutrition must ensure adequate energy intake to delay fatigue while providing proper nutrient density for performance, optimal recovery, and necessary bodyfat
Catabolism
metabolic activity associated with the breakdown of tissues or energy reserves within the body (e.g., storage fat loss due to high caloric expenditure)
Anabolism
metabolic activity associated with the building of tissues or storage of energy reserves within the body (e.g., protein synthesis for muscle growth)
1 Goals of Sport Nutrition
- Providing adequate energy to support work and recovery
2 Goals of Sport Nutrition
- Ensuring nutrient balance supports cellular demands for growth, maintenance, and repair
3 Goals of Sport Nutrition
- Providing adequate support for efficient metabolic and immune function
How should protein and carbohydrate needs be determined?
in grams per kilogram of body weight (g/kg/BW)
What is the greatest indicator of nutritional success?
adequate energy
Mean estimated energy intake for males
2,561-2,994 kcals/day
Mean estimated energy intake for females
1,997-2,457 kcals/day
Who has the highest total energy intakes?
Endurance athletes
What is the most common macronutrient inadequacy?
insufficient carbs
Hyponatremia
dangerous condition associated with an abnormally-low blood sodium level (<135 mmol/L)
Future hot topics with sport nutrition
- the precision nutrition concept
- specialized dietary supplements
- newly-engineered processed foods
- phytochemicals
- diet-microbiota (gut bacteria) interactions
Phytochemicals
active compounds found in plants shown to provide health benefits, but are not essential or linked to a deficiency (e.g., lycopene in tomatoes)