Water, Vitamins & Minerals Fall 2023 PDF

Summary

This document contains lecture notes on vitamins, minerals, and water. It explains the importance of various vitamins and minerals like vitamin A, D, and C. It also mentions food sources rich in these nutrients.

Full Transcript

Water, Vitamins & Minerals Dr.Hala.Al-Nawaiseh Fall 2023 Vitamins  Certain vitamins and minerals are needed for the body to function. ◦ 13 vitamins ◦ 22 minerals  Two types of vitamins ◦ Water-soluble ◦ Fat-soluble Fat-Soluble vitamins  Vitamin A, D, E and K  Excess is stored...

Water, Vitamins & Minerals Dr.Hala.Al-Nawaiseh Fall 2023 Vitamins  Certain vitamins and minerals are needed for the body to function. ◦ 13 vitamins ◦ 22 minerals  Two types of vitamins ◦ Water-soluble ◦ Fat-soluble Fat-Soluble vitamins  Vitamin A, D, E and K  Excess is stored in the liver and in body fat ◦ It is possible to build up to a toxic level Vitamin A (Retinol)  Beta-carotene is converted into vitamin A  Vitamin A: ◦ Promotes good vision ◦ Promotes healthy skin ◦ Helps with growth and maintenance of bones, teeth, and cell structure  RDA: 900 micrograms for males;  700 micrograms for females Too much vitamin A  May turn your skin orange  May cause fatigue, weakness, severe headache, blurred vision, hair loss and joint pain.  Toxicity: ◦ May cause severe liver or brain damage ◦ Birth defects Too little vitamin A  Maycause night blindness  Lowered immune system Foods rich in vitamin A  Foods  Carotenoids ◦ Only animal products ◦ Orange/Yellow fruits  Liver and vegetables  Eggs  Cantaloupes, carrots, sweet potatoes, winter  Milk, butter and cheese squash ◦ Leafy green vegetables  Spinach, broccoli Vitamin D – “The Sunshine Vitamin”  Essential for building and maintaining bones and teeth  Responsible for absorption and utilization of calcium  Other health benefits: ◦ May boost immune system ◦ May also help decrease certain cancers  RDA: 5 micrograms until age 50  10 micrograms / day until 70; 15 mcg 70+ Too little vitamin D  Vitamin D deficiency has been in the news a lot lately.  Deficiency may occur from: ◦ Inadequate diet  Vegetarianism, lactose intolerance, milk allergy ◦ Body unable to absorb needed vitamin D ◦ Limited exposure to sunlight Vitamin D Deficiency  Maylead to osteomalacia and/or osteoporosis Getting vitamin D  Sunexposure for 10 minutes a day  Foods: ◦ Fortified milk ◦ Tuna ◦ Salmon ◦ May need a supplement  Check with doctor first though Vitamin E  Important to red blood cells, muscles and other tissues  Deficiency is rare  Toxicity is rare ◦ But Vitamin E acts as a blood thinner  Foods: ◦ Vegetable oils, salad dressings, whole grain cereals, green leafy vegetables, nuts, seeds, peanut butter and wheat germ. Vitamin K  Important for blood clotting ◦ Also has a role for bone health  Mostly made in the intestines  Foods: ◦ Turnip greens, cauliflower, spinach, liver, broccoli, kale and cabbage Water-Soluble Vitamins  Vitamins Bs and C  Eight B vitamins: ◦ Thiamin (B-1) ◦ Riboflavin (B-2) ◦ Niacin (B-3) ◦ Pyridoxine (B-4) ◦ Cobalamin (B-12) ◦ Folic acid ◦ Pantothenic acid ◦ Biotin Thiamin or B-1  Helps to convert carbohydrates to energy  Deficiency: ◦ Fatigue, nausea, depression, nerve damage  Foods: ◦ Beef, liver, peas, seeds, legumes, whole-grain products, and oatmeal Riboflavin or B-2  Key to metabolism and red blood cells  Deficiency: ◦ Dry, scaly skin  Foods: ◦ Milk, yogurt, cheese, whole-grain breads, green leafy vegetables, meat, and eggs Niacin or B-3  Also involved with energy production  Also helps with skin, nerves and digestive system  Deficiency: ◦ Rare but causes: diarrhea, dermatitis, dementia and death  Foods: ◦ Meat, poultry, liver, eggs, brown rice, baked potatoes, fish, milk, and whole-grain foods Pyridoxine or B-6  Involved in chemical reactions of proteins and amino acids  Deficiency: ◦ Skin changes, dementia, nervous system disorders and anemia  Foods: ◦ Lean meats, fish, legumes, green leafy vegetables, raisins, corn, bananas, mangos Cobalamin or B-12  Helps with nervous system, red blood cells and DNA synthesis  Deficiency: ◦ Nervous system disorders and pernicious anemia  Foods: ◦ Only found in animal products  Meat, fish, poultry, eggs, milk products and clams Folic acid (Folacin, Folate)  Key role in red blood cell formation and cell division  Deficiency: ◦ Anemia, digestive disorders  Foods: ◦ Leafy, dark green vegetables ◦ Also found in liver, beans, peas, oranges, avocados Pantothenic Acid and Biotin  Help with metabolism and formation of some hormones  Deficiencies are rare  Foods: ◦ Almost any food, plant-based or animal-based Vitamin C  Important to bone health, blood vessel health, cell structure and absorption of iron  Deficiency: ◦ Rare  Too much vitamin C  Foods: ◦ Melons, berries, tomatoes, potatoes, broccoli, fortified juices, kiwi, mangos, yellow peppers and citrus fruits Minerals  22minerals are needed by the body  Two categories: ◦ Major  Include calcium, chloride, magnesium, phosphorus, potassium, sodium, and sulfur ◦ Trace  Include iron, zinc, iodine, selenium, copper, manganese, fluoride, chromium, molybdenum, arsenic, nickel, silicon, boron and cobalt Sodium  What does sodium do for you? ◦ Helps maintain fluid balance ◦ Helps transmit nerve impulses ◦ Influences contraction and relaxation of muscles Sodium & Health  Too much sodium ◦ Causes high blood pressure ◦ May lead to fluid retention  The human body requires about 500 mg of sodium per day, while the average American usually ingests between 2,300- 6,900 mg each day.  It is recommended to stay in a range of 1,500 to 2,400 mg / day. Where are you getting sodium? www.mayoclinic.com Reducing sodium in your diet  Eat more fresh foods  Eat less processed foods  Look for low-sodium products  Limit the salt you add to foods  Experiment with other seasonings  Use salt substitutes with caution Calcium  The most abundant mineral in your body ◦ 99% is stored in the bones  Known for bone health  How much do you need? ◦ Males 19-50 years old: 1,000 mg / day ◦ Females 19-50 years old: 1,000 mg / day Calcium & Foods  Dairy products, fortified juices, sardines Food Calcium Yogurt, plain (low-fat) 1 cup - 415 mg Yogurt, flavored (low-fat) 1 cup – 345 mg Milk, skim 1 cup – 302 mg Milk, 1-2% 1 cup – 300 mg Ice cream ½ cup – 88 mg Broccoli, cooked ½ cup – 68 mg Salmon, canned 3 oz – 165 mg Fortified orange juice 8 oz – 300 mg Iron  Irondeficiency is the most widespread vitamin or mineral deficiency in the world. ◦ 70% of your body’s iron is in your hemoglobin ◦ Too little iron = too little oxygen Iron & Foods  Heme iron: ◦ Found in animal products  Red meats, liver, poultry and eggs  Non-heme iron: ◦ Found in plant products  Beans, nuts, seeds, dried fruits, fortified breads and cereals Iron supplements  Check with your doctor first.  High risk groups: ◦ Strict vegetarians ◦ Those who do not eat a balanced diet ◦ Those who are over 60 ◦ Smokers ◦ Those who suffer from food allergies, intolerances Water  Essential for life ◦ It is possible to live without food than without water.  Watermakes up about 45-75% of your body weight Why is water important?  Aidswith transport  Mechanical functions  Helps to break substances down  Helps to maintain body temperature/pH How much water do you need?  Adequate intake: ◦ Ideally 80% of water should coming from drinking fluids.  20% of water intake should come from food

Use Quizgecko on...
Browser
Browser