WGU C458 Health, Fitness & Wellness: Complete Study Guide – Nutrition, Drugs, Mental Health, STIs, Chronic Diseases & Aging (2026/2027 Edition)

WGU C458 Health, Fitness and
Wellness||2025 LATEST DETAILED
QUESTIONS AND
ANSWERS||GRADED A+
1. Nutritionf-fCORRECTfANSWER-
providesfthefbodyfwithfthefnutrientsfitfneedsftofperformfitsfdailyf
tasks

2. Undernutritionf-fCORRECTfANSWER-
impliesfthatfthefindividualfisfnotfgettingfenoughfnutrients.fThisf
canfoccurfevenfiffthefpersonfisfconsumingfmorefthanfenoughfca
lories

3. Malnutritionf-fCORRECTfANSWER-
anfimbalancefoffproperfnutrients

4. Anorexiafnervosaf-fCORRECTfANSWER-
literallyfmeansflossfoffappetite,fbutfthisfisfafmisnomer:fAfpersonf
withfthisfisfhungry,fbutfdeniesfthefhungerfbecausefoffanfirrationa
lffearfoffbecomingffat.fSelf-
starvation,ffoodfpreoccupationfandfrituals,fcompulsivefexercisi
ng,fandfoftenfanfabsencefoffmenstrualfcyclesfinfwomen.f
5. Untreated,fcanfbeffatal.

6. Bulimiaf-fCORRECTfANSWER-
characterizedfbyfrecurringfperiodsfoffbingefeating,fduringfwhic
hflargefamountsfofffoodfarefconsumedfinfafshortfperiodfofftimeff
ollowedfbyfpurgingf(throughfself-

, inducedfvomiting,fabusefofflaxativesfand/orfdiuretics)forfperiod
sfofffasting

7. Bingefeatingfdisorderf(BED)f-fCORRECTfANSWER-
episodesfoffbingefeatingfcharacterizedfbyfeatingfrapidly,featingfl
argefamountsfofffoodfevenfwhenfnotffeelingfhungry,fandffeelingf
guiltyforfdepressedfafterfovereating.

8. Obesityf-fCORRECTfANSWER-
15ftof20fpercentfabovefnormalfweight.fPoorfdietaryfpatterns;fin
cludefincreasedfintakefoffsugarsfinfsweetenedfsoftfdrinks,ffoods,
fandfmealsfoffhighfenergy,flowfnutrientfdensity,fandflargefportio

nfsizes.fAtfriskfforfseriousfhealthfproblemsfsuchfasftypef2fdiabet
es,fhypertension,fheartfdisease,fstroke,fandfsomeftypesfoffcance
r.

9. Mineralsf-fCORRECTfANSWER-
inorganicfmaterial.fFormfbodyfpartsf(teethfandfbones),fmaintai
nfacid-
basefneutrality,fregulatefnervefimpulses,fosmoticfpressure,fand f

electrolytefbalance

10. Majorfmineralsf-fCORRECTfANSWER-
neededfbyfthefbody:
• calcium—milk,fcheese,fsardines,fsalmon,fgreenfvegetables
• phosphorus—milk,fcheese,fleanfmeat
• potassium—oranges,fbananas,fdriedffruits
• sulfur—eggs,fpoultry,ffish
• sodium—tablefsalt,fbeef,feggs,fcheese
• chloride—tablefsalt,fmeat
• magnesium—greenfvegetables,fwholefgrains

,11. Tracefmineralsf-fCORRECTfANSWER-
requiredfinflesserfamounts,fandfincludefiron,fzinc,fselenium,fm
agnesium,fcopper,fiodine,ffluorine,fchromium,fmolybdenum,f
andfmanganese

12. HDLfcholesterolf(highfdensityflipoproteins)f-
fCORRECTfANSWER-

protectfthefbodyfagainstfheartfdisease.fOftenfcalledf"good"fchol
esterol.

13. LDLfcholesterolf(lowfdensityflipoproteins)f-
fCORRECTfANSWER-

mostfcholesterolfinfthefbloodfisfoffthisftype.fOftenfreferredftofasf
thefbadfcholesterol.fhighflevelsfinfthefbloodfincreasesfthefriskfoff
fattyfdepositsfformingfinfthefarteries,fwhichfinfturnfincreasesfthef
riskfoffafheartfattack

14. Lipoproteinsf-fCORRECTfANSWER-
largefmoleculesfofffatfandfproteinfinfthefbloodstream;fhowfchol
esterolfisftransported

15. Antioxidantsf-fCORRECTfANSWER-
slowfthefagingfprocess.fReducefcellularfdamagefbyfbindingfwithf
freefradicalsfproducedfduringfoxidationfreactions

16. Oxidationfreactionsf-fCORRECTfANSWER-thefenergy-
yieldingfreactionsfinfwhichfeitherfanfoxygenfatomfaddsfanfelectr
onftoforfafhydrogenfatomfremovesfanfelectronffromfafsubstratef(
afgroupfoffatomsforfmolecule)—
thefnetfresultfisfafsubstratefthatfhasfhadfafpartialforfcompletefloss

, offafnegativelyfchargefparticle,fanfelectron.fTwofpartiallyfcharge
f

dfatomsforfgroupsfoffatoms,fonefpositivelyfchargedfandfthefothe
rfnegativelyfcharged,fnowfexist

17. Freefradicalf(Oxidant)f-fCORRECTfANSWER-
anyfatomforfgroupfoffatomsfthatfhasfanfunpairedfelectron.fBeca
usefelectronsftypicallyffunctionfinfpairs,fthesefarefveryfproneftof
bindingftofotherfsubstratesfinfanfeffortftofregainfthisfpairedfstatu
s.fWhenfthisfhappensfinfthefhumanfbody,ftherefisfpotentialfforfa
fgreatfdealfoffdamage.




18. Carbohydratesf-fCORRECTfANSWER-
producef4fcaloriesfoffenergyfperfgram.fFoundfinffoodsfasfmono
saccharides,fdisaccharides,fandfpolysaccharides.fSourcesfinclu
deffruits,fvegetables,fpasta,fandfricefwhichfconsistfoffsimplefsuga
rsfandfstarches

19. Proteinf-fCORRECTfANSWER-
producef4fcaloriesfoffenergyfperfgram.fSourcesfincludefmeatsfa
ndfmilk.fComposedfoff8fessential(providedfbyfthefdiet)fandf12f
nonessential(synthesizedfbyfthefbody)faminofacids.fPerformfm
anyffunctionsfincludingfbuildingfcellsfandftissues,fformingfbloo
dfandfenzymes,fandffightingfinfection.

20. meansfprimary,fandfnoforganismfcanflive,fandfalmostfnofb
iologicalfprocessfcanftakefplace,fwithoutfit

21. Lipidsf-fCORRECTfANSWER-
producef9fcaloriesfoffenergyfperfgram.fOrganicfcompoundsftha
tfdofnotfreadilyfdissolvefinfwater;fbasedfonftheirfsolubility,ftheyfa