11 4 13 Lecture 24 Lecture 25 on Moodle 11 6 Red Bull claims to give you wings because of ingredients like B vitamins and Taurine Caffeine 80 mg Coke 35 In Sydney Summer Olympics 2000 1400 of 2700 athletes were taking multivitamin supplements in the 3 days before competing Also using a lot of asthma medication anti inflammatories etc Vitamins and minerals contain no energy but they play key in production of energy Vitamins and minerals micronutrients Unlike CHO PRO fat and water gram tons of grams needed Milligrams grains of sault or micrograms 1 g paperclip are needed Minerals are elements e g sodium iron phosphorus Vitamins 2 types Water soluble vitamins and fat soluble vitamins A D E K Fat soluble vitamins are stored in liver Stored for weeks months toxic in very large quantities Water Soluble vitamins there s B vitamins and vitamin C Water soluble vitamins NOT stored in large quantities Must be eaten regularly Vitamin C is stored in the liver but it is limited can go 2 3 months without eating it B vitamins Thiamine b1 Riboflavin b2 niacin B3 pyridoxine b6 biotin pantothenic acid energy production folate B9 cyanocobalamin b12 red blood cell production Thiamine coenzyme forms acetyl CoA Pantothenic acid is part of acetyl CoA Niacin and riboflavin are coenzymes critical for oxidative energy production Vitamin B deficiency Lethargy fatigue intolerance to exercise Kids failure to grow Beri beri Singhalese means I can t I can t Key points so far 1 B vitamins contains no energy but critical to produce energy 2 Oxidative production of ATP needs all of the B vitamins 3 Deficiencies in ANY B vitamins problem with energy production 4 Fatigue is major symptom More B vitamins if you are an athlete Should RDA for B vitamins be scaled to energy intake Someone expending 4000 kcal day does this person need more B vitamins Couch potato 2000 kcal No demonstrated need for more B vitamins E g car oil and gas recycled Will they harm you Probably not Energy Drinks 5 hr energy Red Bull etc contain a lot of B vitamins Is this why they work
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