Browsers are difficult Please wait, loading your map...
Is drinking cows' milk goodfor humans?You decide!1.1DISCUSSION QUESTIONS:1. What makes a food "healthy"?2. What should you do when there appear to be differentscientific studies making contradictory claims?3. Do any of the arguments on either side of this mapmotivate you to change the way you think about your ownconsumption of milk and dairy products?YES: Drinking cows' milkis good for humans1.3Dairy milk and milk-based productscontain a highamount of variousessential nutrients2.1Milk is an excellentsource of manyvitamins andminerals, includingvitamin B12, calcium,riboflavin, andphosphorus3.1Milk is an excellentsource of high qualityproteins3.2Animal proteinsfound in milk anddairy contain all thenecessary aminoacids for humans inthe right ratios forour bodies to putthem to full use4.1Cows and othermammals have verysimilar cell tissuestructures to humans5.1Proteins are vital forhealth3.3Every cell in the bodycontains proteins4.2The body usesproteins to build andrepair cells4.3Proteins areespecially importantfor children, teensand pregnant women4.4Childhood,adolescence, andpregnancy are timesof increased growthrelative to otherstages of life5.2Proteins, especiallyenzyme proteins, arenecessary for buildingnew cells5.3Drinking milk mayhelp to decrease therisk of cardiovasculardisease or failure2.2A study by theWageningenUniversity andResearch Centre inthe Netherlandsfound that intake oflow-fat dairy productsmay contribute to theprevention ofhypertension at anolder age3.4Hypertension, or highblood pressure, putspeople at risk ofcardiovasculardiseases, heartattacks and strokes3.5Drinking milk in themorning can reducethe risk of obesity2.3Consuming high-quality proteins earlyin the day can reducerisk of obesity3.6Consuming high-quality proteinsreduces overeatingtendencies4.5Consuming high-quality proteinsreduces the appetite5.4A lower appetitereduces desire toovereat5.5Overeating can leadto obesity4.6Milk is a high-qualityprotein3.7Milk provides morehealth benefits thanalternative non-dairymilks2.4Dairy milk providesmore protein thannon-dairy milkalternatives3.8Dairy milk provides agreater diversity ofvitamins, nutrients,and minerals thanalternative milks3.9Drinking milk canhelp build strongbones2.5Milk and milkproducts are an idealsource of dietarycalcium3.10Milk is naturally richin calcium4.7Calcium in dairyproducts is easier forthe body to absorbthan calcium fromother sources4.8Oxalate and phytate,two naturallyoccurring compoundsin plants, restrictcalcium absorption5.6Milk and dairy do notcontain oxalate orphytate5.7Milk and dairyproducts containnutrients that aid inabsorption ofcalcium, includingvitamins D and K,phosphorous andmagnesium5.8Calcium is used tomaintain bonedensity and strength3.11NO: Drinking cows' milkis not good for humans1.4Consuming milk andother dairy productscan increase the riskof heart disease,including heartattacks or strokes2.6Milk and dairyproducts are the mostsignificant sources ofsaturated fat andcholesterol in theAmerican diet3.12High intake ofsaturated fat andcholesterol can leadto various heartdiseases, includingheart attacks orstrokes3.13Cholesterol andsaturated fat causeplaque to build up onthe inside of arteries4.9Plaque buildup, oratherosclerosis,causes narrowed orblocked blood vesselsthat can lead to aheart attack, chestpain (angina) orstroke4.10Heart disease is theworld's number onecause of death2.7According to theWorld HealthOrganization,ischaemic heartdisease has beenresponsible for 16%of all deaths since20003.14Dairy milk oftencontains harmfulchemicals, bacteria,and other substances2.8A study byresearchers at theUniversity of Córdobafound traces ofvariouspharmacologicalsubstances, such asniflumic acid,mefenamic acid andketoprofen3.15The milk of anylactating mammalcontains traces ofchemicals and toxinsto which the mammalhas been exposed3.16Dairy cows are oftenexposed tohormones, toxins andother chemicals3.17Some dairy cows areinjected with ahormone calledrecombinant bovinesomatotropin (rbST)to increase their milkproduction4.11Some equipmentused in theproduction of dairyproducts containhormone-disruptingchemicals calledortho-phthalates4.12Dairy cows kept indrylots or semi-confinement areespecially susceptibleto parasites4.13These environmentsexpose cows to fecal-contaminated feedand drinking water5.9To protect cows fromparasites, farmsadminister chemicalpesticides called"wormers" byinjection, ingestion,or "drenching"4.14Cow milk oftencontains significanttraces of pus3.18Many US dairy cowshave a disease calledmastitis4.15The average quantityof somatic cells in ateaspoon of milk is1,120,0005.10Somatic cell quantitygreater than 1 millionper teaspoon isalmost always anindication of mastitis5.11Mastitis is a diseasethat causes pus toaccumulate in cowmilk4.16Many people arelactose intolerant2.9Lactose, a key proteinin dairy products ishard for mosthumans to digest3.19After the age of 5,most human bodiesnaturally produce lesslactase, the proteinneeded to digestlactose4.1765% of adult humansare lactose intolerant3.20Lactose intolerancecan cause bloating,nausea, indigestion,diarrhea and otherproblems2.10Claims about thehealth benefits ofmilk are oftenexaggerated2.11Diary milk may notactually promotebone strength3.21According to a 12-year study byresearchers atChanning Laboratory,higher intake of milkdid not correlate withdecreased risk ofbone fractures4.18Another study by ateam of Swedishresearchers foundthat high milk intakecorrelated withhigher rates ofcertain bone fractures4.19Studies that suggestthat milkconsumption is linkedto reduced risk ofcancer are based oninconclusive ormisleading evidence3.22BACKGROUND:Milk is one of the most popular drinks in the US and is a key ingredient ineverything from cheese to ice cream. For years, milk has been advertised as adietary staple and ultra-nutritious superfood (anyone from the early 2000sremember the Got Milk? campaign?). In recent years, however, some studieshave begun to cast doubt on these claims and some people are suggestingabandoning the dairy train altogether. But whether you brush your teeth withmilk or get queasy just thinking about udders, it is almost guaranteed thateither you or someone you know drinks milk on a regular basis. This is aserious and unavoidable issue today. Good thing you've made it to this page.1.2

Created using MindMup.com