Week 10

• What are micronutreints?

  vitamins and minerals that are needed in small amounts. are essential
• Vitamins are organic compounds that are recognized as essential. classified according to how soluable they are
• Minerals are inorganic substances. are all elements and do not need to be broken down to be absorbed
• Minerals are classified as major or trace
• Major minerals: electrolytes, bone, proteins
• Trace: metals mostly
• Dietary iron: heme, found in meats, fish, and poultry
• Non-heme: found in plants, animal foods, and supplements
• Binding factors are within the same food
• High fiber foods and oxalic acid decrease zinc and iron absorption
• Fat soluable vitamins are absorbed into the lymph, require protein carries
• Fat vitamins are not readily excreted, deficiency signs can occur more slowly. Toxicity is possible ecen when intake is normal
• Water soluable are absorbed into the blood stream directly. stored in water compartments
• Deficiency in water soluable vitamins present themselves more quickly. toxicity is shorter lived
• Micronutrients toxin overload is more likely to come from supplements
• Micronutrients supplements can be harmful to certain people, most minerals are absorbed from animal sources
• enrichming low nutrients food with vitamins and minerals does not mean they are healthy
• Eating a variety of food is better than supplements
• Foods can provide a balance of micronutrients and other factors that work together to enhance health
• in pregnant women and people with genetic disorders micronutrient supplements can be helpful for good health