Unformatted text preview: osine Dipeptide (two AA) that has anti-oxidant properties
Creatine Sports supplement used as an energy supplement, high energy molecule
Choline Component of cell membranes and neurotransmitters LS 2N03 – Human Nutrition for Life Sciences
D.M. Pincivero, 2013 10 MICRONUTRIENTS
Very small molecules that we do not get energy from them, but they enable us to extract energy
from macronutrients. Various enzymes that are involved in breaking up macronutrients require
• Organic compounds that contain carbon, hydrogen and other atoms (nitrogen, oxygen,
• Energy extraction from macronutrients
• Calcium balance
• Blood clotting
1) Water soluble: B vitamins (8) and vitamin C Subject to ﬁltration by the kidney
2) Fat soluble: A, D, E, K
Absorbed with dietary lipids
More prone to toxicity Minerals
• An inorganic nutrient that is needed for growth and regulation of normal physiology
• 16 minerals
Macrominerals: Major minerals required in the diet in larger amounts than the trace minerals.
• Na, K, Cl, Ca, P, Mg, S
Trace minerals: Required in small amounts in the diet.
• Fe, Zn, Cu, Mo, Mn, Se, I, Fl
WATER LS 2N03 – Human Nutrition for Life Sciences
D.M. Pincivero, 2013 11 What is Energy?
• An ability to cause changes in, or perform, work, heat and/or mass. • Common definition: ability to perform work. Forms of energy:
Nuclear - moving physical objects
moving charges (electrons)
increasing temperature (randomness)
binding/unbinding of bonds
binding/unbinding of nucleons calorie
• is the amount of energy needed to raise the temperature of 1 gram of water by 1 degree C.
1,000 calories = 1 kcalorie = 1 Calorie
Energy density: amount of energy in a food source relative to its’ mass.
Delivers a lot of calories per until mass (g). Nutrient density: amount of nutrients in a food source relative to its’ energy content.
Opposite to energy densit...
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