9.11.13 Kin 110 lecture notes- Announcements:o Kin club a week from todayo Barry won’t be here on Friday o We are doing a video/slides – can view wherever - Diet?o Habitual pattern of eatingo Doesn’t have to do with weight losso Many ways people try to get you to change your diet- Weight loss?- Diet actually refers to what you eat over a course of days, weeks, months…o Mixed diet Eat almost anything Clearly not spoiled and rotteno Vegan – no butter no milk (nothing from animal)o No carb Popular for several years… Not good- Habitual pattern of eatingo Doesn’t mean you have to eat the same thing everyday.o “Average”; days you eat well, days you eat poorlyo OCD/Body builders – same thingo Mypyramid.gov New pyramid has vertical bars – each corresponds to a different food group. Has a person going up the stairs(exercise is important in health) Old pyramid – horizontally stacked Newest pyramid- Plate with fruits, grains, vegetables, protein, dairy- Dairy farmers don’t like it – its not on the plate- Choosemyplate.gov- Lots of politics in these visuals…o Dairy counsel…o Push for people who produce beef, milk, etc. (not necessarily about health)o Thesnackneutralizer.com- Overeat, hardly eat, eat nothing but oreos, feel guilty and eat nothing but veggies- How many days to get an accurate picture of habitual diet?o 7 days (consecutive), 30 days, 6 monthso non-consecutiveo it would take a while… weekends vs. weekdays seasonal eating eating while at school finals week- Registered dieticians collect between 3-7 days (two weekdays, and a weekend day)o Why 3 days?o Need to record every single thing they ate…o Break down “jambalaya”- Mealsnap.como Take picture of what you are going to eat- Colleting diet info is an inexact science (WHY?)o People change behavioro People always report less than what they actually ateo Some over-report: people with anorexiao Many people believe data are fundamentally flawed Better way of doing this- Accurate assessment of diet is critical because diet athletic performance and health- Is high intake of fat related to risk for getting heart disease?o 1. Identify who gets heart diseaseo 2. Accurately assessment fat intakeo 3. Compare fat intake to rate of heart disease- number of people who get heart disease increases as amount of fat in diet increaseso more fat - greater risk of heart diseaseo disclosure: graph is made up- Say we can accurately measure rate of heart disease and fat in people’s diet?o Are other factors not being considered? *gender age ethnicity other risky behavior (drugs, smoking)o consider all the other factors? Epigenetics In utero – what your mother did when she was pregnant with you, change epigenetics – change risk of different diseases- Does a positive relationship beween two things prove that one causes the other?o Correlation is not always causation- Distance from the earth to Saturn, perfect correlation to the price of gasoline…o No relationship…o Stress causes heart disease? Not the fat?- Difficult to design studies to get definitive data.o Sharper picture of diet and health by creating an experiment- Healthy group of people – change the fat in their dieto Some 10%, 20%, 30%... Look at who gets heart disease Whats the problem with this Unethical…? We don’t know if eating more or less fat causes heart disease sowe don’t know if that’s going to happen No one wants to dedicate their whole life to this studyo Provide all food, and control that affect risk for disease Exercise, tv, work, etc.o Cost a lot of money, take forever, almost impossible to do!- How do you design a study that answers an important question takes a reasonable about of time and cost a reasonable amount of money?o Test animals Problem: not completely accurate (rats aren’t
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