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1
FrequencyofUse,InformationandPerceptionsof
ConjugatedLinoleicAcid
By:KimberlyTippetts
Abstract
Extensive researchhasbeen conducted in both animal andhumanmodels,
whichdemonstratetheefficacyofConjugatedLinoleicAcid(CLA)asbothaweight
lossandaleanbodymassdietarysupplement.Conversely,verylittleresearchhas
been conducted concerning the practical human application of CLA, (i.e. the
frequencyof supplementation, information individualspossess,perceptionsabout,
andgeneralexperiencespeoplehavehadwithCLA).Thepurposeofthisstudywas
togathera limitedamountofapplicable informationtobeginto fill thenoticeable
informationvoid.Asixteenstatementconfidentialonlinesurveywasprovidedfora
number of participants to share their opinions and understanding of CLA. The
surveyresultsshowedthatwhileonlyasmallpopulationofsurveyparticipantshad
general information about CLA, a larger percentage of participants indicated that
theywouldbothuseand/orrecommendtheuseCLAforleanbodymassgainmore
than they would for weight loss. Based on this finding, it would be beneficial to
conduct further product research amongst a narrower sample population such as
bodybuilders.
2
Methods
AninvitationtoparticipateinastudyregardingtheuseofCLAwasmadeto
over400individuals.Samplesizewasderivedfromeightstates,recruitedbymeans
ofverbalrequest,promotionalhandout,textmessage,emailinvitationorFacebook
request(seeAppendixA).Ofthe400+peoplenotifiedofthesurvey,overhalfwere
associatedwiththefitnessindustry. Ofthosenotified,131healthyadultsbetween
theagesof18-65volunteeredtotakepart.Participantsofthesurveywereaskedto
classifythemselvesintooneoffivecategories,whichincluded:apersonwholikesto
workout,afitnessinstructor,apersonaltrainer,abodybuilderornoneoftheabove.
The first category, a person who likes to workout, was created based on the
likelihood that thepersonwho isexercisingwith the intent to loseweightorgain
lean body mass may potentially supplement with CLA. The second and third
categories,fitnessinstructorandpersonaltrainer,werespecificallyincludedinthe
survey because they are frequently asked for nutritional advice on ways to lose
weightorgain leanbodymass. Thefourthcategory,bodybuilder,was includedin
the survey based on the results of primary research conducted on numerous
bodybuilding websites. These primary research results found that daily
supplementation of CLA was recommended. The final category available for
participantswasnoneof theabove, indicatingthat theydidnotexercisenorwere
theyinvolvedinthefitnessindustry.
ThesurveyfollowedtheLikertstyleandconsistedofsixteenstatements(see
AppendixB).Thestatementsweredesignedtodetermineifparticipantspreviously
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supplementedwithCLA,why theyhad supplementedwithCLAand if theywould
recommendCLAtoothers.Thesurveywaspostedonline(seeAppendixC)forfour
weeks.
Onceavolunteeraccessedthesurvey,basicinstructionsappearedatthetop
of the page. The instructions read: “This survey is available to any healthy adult
betweentheagesof18-65.Pleasetakeafewminutestoreadthroughthefollowing
questions and answer themas honestly as you are able. If you strongly agree or
agreetoquestions7and12,pleaseincludeashortresponseinthespaceprovided.”
By continuing with the survey, the volunteer agreed that they were healthy,
between the ages of 18-65 and providing their honest answer to each statement.
Thesurveygenerallytookrespondentstwominutesorless.Individualresultswere
recorded(seeAppendixD)andcompiled(seeAppendixE).
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Introduction
ThefitnessandsupplementindustriesbothpromoteCLAforitscapabilities
ofincreasingweightlossandleanbodymass.Theybothclaimthatitcanimprove
bodycompositionbyincreasingmetabolicrateandenhancingmusclegrowth.One
article claimed that taking CLA would make losing weight and body fat simpler
(TrendStatementStaff,2013).ThissamearticlesuggestedthatCLAisabletoturn
fat into leanmusclemass (TrendStatementStaff, 2013). This is a false statement
sinceitisimpossibletochangefatintoleanmuscletissue,youcanhoweverreplace
one with the other. An article published by the Dr. Oz Show claimed that CLA
shrinks fatcells in theabdominalregionbyassistingtheprocessofcellsreleasing
fat (TheDr.Oz ShowStaff, 2013). It appears that these industries are taking the
positive results frombothhumanandanimal studies and comingling them to sell
CLAtothegeneralpublic.Becauseoftheseflawedclaimsasurveywascreatedand
conductedtouncoverwhatinformationandperceptionsusershaveaboutCLA.
The information a person possesses regarding CLA may lead to questions
regarding individual effectiveness compared to potential health risks associated
with the use of CLA. The answers to these questionsmay impact individual use.
Onceperceptionsareformed,userswilldecidewhetherornottosupplementwith
CLA, which will in turn create personal experiences. Once a person gains
experienceswith CLA, theywill have first hand personal information. There has
beenagreatdealofresearchconductedontheefficacyofCLAwhenusedforweight
loss or lean bodymass gain both in humans and in animals. However, notmuch
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research has been conducted regarding the frequency of use, information
individualspossessorperceptionspeoplehaveregardingtheuseofCLAasadietary
supplement.
Conjugated Linoleic Acid refers to a family of geometric and positional
isomersoftheomega-6fattyacidlinoleicacid(cis-9,cis-12,octadecadienoicacid).
Geometric isomers are compounds that have the samemolecular formula but are
differentgeometricstructuresPositionalisomersaremoleculesthathaveidentical
substituents(functionalgroups)withdifferentbondinglocations.Linoleicacidisan
18-carbon (“octa-deca”) fattyacid chain containingdoublebondson the9and12
carbonsseparatedbytwosinglebonds(Kelly,2001).CLAisformedwhenchemical
reactions shift the locations of one or two of the double bonds in away that the
bondsarenolongerseparatedbytwosinglebonds.SeveraldozenCLAisomersmay
resultdependingonwhichdoublebondsare relocatedand the resultant isomeric
reconfigurations(Kelly,2001).CLAispolyunsaturated(acarbonchainthatcontains
multipledoublebondsbetweencarbonatoms)andconjugated(joinedtogether)by
havingtwodoublebonds,withoutaninterveningcarbonatom.Themorecommon
formshavedoublebondslocatedbetweencarbons8and10,9and10and12or11
and13.Thesebondsmayoccurasgeometricisomersinacis(onthesamesideof
the carbon-carbon double bond) or trans (opposite side of the carbon-carbon
doublebond)configuration.
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Figure1.CLAisomerscis-9(c9),trans-11(t11)andtrans-10(t10),cis-12(c12)(“ConjugatedLinoleic
Acid”,2013).
ThereareseveralnaturaldietarysourcescontainingCLA. Dietaryamounts
rangefrom0.9milligrams(mg)upto137(mg)pergramoffat.Smallamountsare
found in shrimp (0.9 mg), olive oil (2.7 mg), peanut butter (3.2 mg) and dairy
productssuchasyogurt(11-17mg),butter(54mg)andhomogenizedmilk(92mg).
Larger amounts are found in ruminantmeats such as ground beef (130mg) and
lamb (137mg) or from enhanced foods and supplements. The predominate CLA
isomerpeopleconsumeinfoodssuchasbeefanddairyiscis-9,trans-11(Churruca,
Fernandez-Quintela,Portillo,2008).IthasbeenproventhatCLAlevelsinmeatscan
beincreasedbymeansofcooking(Fragakis&Thomson,2007). CLAisconsidered
tobeanon-essentialfattyacid,meaningthatthehumanbodyisabletoproducean
adequate amount for its needs; so consuming dietary sources is unnecessary.
Because it is non-essential, there are no Dietary Reference Intake (DRI)
recommendations for CLA at this time. Dietary supplement manufactures
recommendtakingbetweenone-fourgramsofCLAperday(g/d).Scientificstudies
researchedforthisprojectusedCLAinvariousrangesfrom3.4g/d(Chen,S.etal,
2012)tofiveg/d(Pinkoski,C.etal,2006).
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CLA was accidently discovered in 1979 at the University of Wisconsin,
Madison by Dr.Michael Pariza. A study conducted by Dr. Pariza discovered that
mice treated with a beef extract applied topically to their skin, developed fewer
tumorswhenexposed to strong chemicals than thosemicenot treatedwith same
topical treatment (HaY,GrimmN,ParizaM.1987).The termCLAwasnot coined
until1987whenCLAwasdiscoveredtodisplayanti-carcinogenic(asubstancethat
inhibitsthedevelopmentofcancer)activitieswhentopicallyappliedtotheskinof
mice (HaY,GrimmN,ParizaM.1987&Pariza,1987). Furtherstudieswere then
conducted on animals to test for various effects the isomers may have on body
composition (such as weight loss and lean body mass gain), immune function,
reductionof atherosclerosis and anti-catabolic and anabolic effects. In2008, CLA
was given a Generally Regarded As Safe (GRAS) status by the Food and Drug
Administration (FDA) in foods such as fluidmilk, yogurt, fruit juices, soymilk and
nutritionalbars.
CLA is touted as an ergogenic aid (a substance that can be ingested to
enhancehigh-intensityexercise)inthefitnessindustrytoincreaseweightlossand
leanbodymass. Thetwomostcommonclaimsmadearetheabilitytoassistwith
weightreduction fromthe t10,c12 isomerand theabilityof thec9, t11 isomer to
increase the quantity of lean body mass (Park, Y. et al, 1999). Recent evidence
suggests that CLA supplementationmayplay a role reducing the body’s ability to
formfat(Campbell&Kreider,2008).Itissuggestedthatonceingested,theisomers
c9,t11andt10,c12maybeincorporatedintothephospholipidmembraneofcells.
Once the isomer t10, c12hasbecomepartof the cell, theuptakeof lipidsmaybe
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decreasedby lessactive fatcellsand increasedbymoreactivecells,utilizing fatty
acidsforenergymoreefficiently.ClaimshavebeenmaderegardingCLA’sanabolic
abilitytoincreaseleanmusclemass(Pinkoski,C.etal,2006).Studiesindicatethat
the urinary marker of myofibrillar degradation which directly results from a
decreaseinmusclefibercataboliceffectsfromstrengthtrainingonmuscleprotein,
andanincreaseinproteinsynthesis(Seedman&Seedman,n.d.).Thiswouldcreate
more of an anabolic state to increase buildingmusclemasswhile also losing fat.
Once CLA has been incorporated into the cell membrane, it influences the cells
responsiveness to specific hormones and changes thewaymuscle cells grow and
develop(Berning&Nelson1998). Musclemasscanthereforebeincreaseddueto
increased levels of specific hormones, cell messengers and growth factors within
musclecells.
There have been hundreds of studies conducted on rodents and cows
indicatingthatCLAhasasignificanteffectonbodycomposition.Manyconclusions
of animal studies indicate that CLA increases leanbodymass, decreases fatmass,
andhasapositiveeffectonhealth(Seedman&Seedman,n.d.). Aprominentstudy
concludedthatmicefedCLAdecreasedtheir fatmass,andhadanincrease in lean
bodymass(Bhattacharya,A.etal,2006). Anotherstudy indicatedthatmice feda
dietsupplementedwithCLAhadadecreaseinbodyweight(Banu,J.etal,2006).
There have been many studies conducted on humans to determine the
effectivenessofCLA.ThemajorityofthesestudiesindicatethatCLAhaslittleorno
positive effect with regards to weigh reduction or lean body mass gain. A study
conductedonhumanssupplementingwithCLAcombinedwith resistance training
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foundthattheCLAgrouphadasmallincreaseinleanbodymassandsmalllossin
fatmasscompared to theplacebogroup.Overall, thestudyconcluded, therewere
relatively small benefits to taking CLA (Pinkoski, C. et al, 2006). Another study
examinedtheeffectsofCLAisolatedintotheseparateisomersc9,t11andt10,c12
(Malpuech-Brugere,C.etal,2004).Attheconclusionofthestudy,researcherswere
unable toseeanystatisticallysignificantdifferences inbodycompositionbetween
membersof the fivedifferentgroups. TheyconcludedthatCLAdoesnothavethe
same weight reducing effects in human subjects as it does in animals. While
research indicates that CLAhas a positive impact on decreasing bodyweight and
increasingleanbodymassinrodentsandcows,thereisconflictingevidencethatit
hasasignificanteffectinhumans(Malpuech-Brugere,C.etal,2004).
SupplementmanufacturerspromoteCLAasbeinganeffectiveergogenicaid.
ManycompaniesclaimthatCLAiscapableofaidingwithweightloss,increasingthe
metabolicrate,andreducingbodyfatinhumans.Manufacturersalsoleadpotential
users to believe that scientific research has proven that CLA helps reduce stored
bodyfatandincreasesleanbodymassbyreducingthefatcellsabilitytoaccumulate
fat.TheseclaimsmadebysupplementmanufacturersregardingtheuseoftheCLA
havebeenprovenbymultiple studies conductedonhumansubjects tobe flawed.
ThemajorityofthosestudieshavefoundthatCLAisineffectivewhentakenforthe
purposeofweightlossandleanmusclemassgain.Itisunclearifthemanufacturers
arebasingtheirclaimsonanimalorhumanstudies,whichmaybeconfusingforthe
consumer. It is also unclear to the consumerwhat they are actually purchasing.
Many CLA manufacturers do not place information on the bottle label regarding
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whichisomer(s)thebottlecontains,whetherornotitisapureformofCLA,orifitis
amixtureofdifferentisomers.
CLAisrelativelysimpleandconvenienttopurchasebecauseitcanbefound
inmost local pharmacies, health food stores or variouswebsites on the Internet.
Capsulescontaining60%-80%CLAaresoldcommerciallyasdietarysupplements.
ThemainproblemwithpurchasingcommerciallypreparedCLAsupplementsisthat
they typically contain amixtureof the c9, t11 and t10, c12 isomers. Because the
isomer c9, t11 is used more for lean body mass gain while t10, c12 is used for
weight loss; it is unclear to the consumer what they are actually purchasing.
Capsulescanbepurchasedin500milligram(mg)upto3000mgdosesandrangein
quantityfrom50to100capsulesperbottle.WhilethereisnoDRIforCLA,various
manufacturesrecommendedtakingarangeofonetofourgramsperday(g/d)for
best results. The various studies reviewed for this research paper used CLA in
dosagesrangesof3.4g/dtofiveg/d.
Thereare several short-termand long-termhealth risks resulting from the
useofCLA,however, extensive testinghasnotbeenconductedbeyond twoyears.
Acuteeffects(whichmaybecausedbypoorqualityorcontaminatesinthecapsules)
include: gastrointestinal upset, including nausea, diarrhea, dyspepsia and fatigue
(Fragakis&Thompson,2007).Theseeffectsaretypicallymildandsubsideshortly
aftertheindividualceasesuseoftheergogenicaid.Apotentialchroniceffectofthe
CLAisomert10,c12isinsulinresistanceinpeoplewithabdominalobesity(Fragakis
&Thompson,2007). Anotherstudyconcluded that theuseofCLAmight increase
theriskofdevelopingdiabetes(Robertson,n.d.).DailyuseofCLAbyobesemenin
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the amount of 4.2 g/d was found to cause lipid peroxidation (the process of
oxidative deterioration of lipids containing any number of carbon-carbon double
bonds)(Fragakis&Thompson,2007). Ithasalsobeendiscoveredthattheuseof
CLA increases the storage of vitamin A “retinal” in liver and in breast tissues
(Fragakis&Thompson,2007).
ResearchQuestion
Due to the lack of quality product information, this studywas designed to
discover and compile data regarding frequency of use, perceptions people posses
and experiences people have hadwith CLA supplementation. How frequently are
peoplesupplementingwithCLAand forwhatpurpose?Are thesepeopleawareof
natural sources, effective dosage and potential health risks associated with CLA
supplementation?
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FindingsandAnalysis
QuestiononeoftheCLAsurveyaskedtheparticipantstoclassifythemselves
asapersonwholikestoworkout,afitnessinstructor,apersonaltrainer,aperson
wholikestoworkoutornoneoftheabove.Participantswereaskedtomarkall
categoriesthatapplied.Ofthosesurveyed,66%oftheparticipantsindicatedthat
theyliketoworkout;16%saidtheywerefitnessinstructors;5%saidtheywere
personaltrainers;4%saidtheywerebodybuilders;and23%saidtheywerenoneof
thelistedcategories.Thosewhoexercisewiththeintenttoloseweightorgainlean
musclewereincludedinthesurveybecausetheyaremostlikelytheoneswho
supplementwithCLA.Fitnessinstructorsandpersonaltrainerswerespecifically
targetedtoparticipateinthissurveyduetothelikelihoodofnutritionaladvice
beinggiventoindividualsinquiringaboutweightlossorlean-muscle-massoptions.
BodybuilderswerespecificallytargetedbasedontherecommendeduseofCLAfor
thepurposeofleanmusclemassgainbynumerousbodybuildingwebsites.
1.IAm:
APersonwho
likestoworkout
AFitness
Instructor
APersonal
Trainer
ABodybuilder Noneofthe
Above
66% 16% 5% 4% 23%
QuestiontwoinquiredaboutfrequencyofuseofCLAforweightloss.
RespondentswereaskediftheyarecurrentlyorhaveeverusedCLAtoassistwith
weightloss.Ofthosewhoparticipatedinthesurvey,10%saidtheyarecurrentlyor
haveusedCLA,while90%indicatedthattheyarenotcurrentlynorhavetheyever
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supplementedwithCLAforweightloss.
Questionthreewasdesignedtodetermineifaparticipantwouldeveruse
CLAforweightloss.Themajorityoftherespondentswereneutral,followedby
thosewhoeitherdisagreedorstronglydisagreedtosupplementingwithCLAfor
weightloss.
3.IwoulduseCLAforweightloss
Neutral Disagree Strongly
Disagree
Agree StronglyAgree
50% 18% 17% 12% 3%
In question four, when asked if participants were currently using or have
usedCLAtogainleanmusclemass,only9%indicatedyeswhile91%indicatedno.
When analyzing questions two and four, there proves to be a slight percentage
increaseofrespondentswhoarecurrentlyusingorhaveusedCLAforweight loss
thanforleanmusclegain.
Question five asked if participants would supplement with CLA for the
purposeofgainingleanmusclemass. Themajorityoftherespondentsagainwere
neutralfollowedbythosewhodisagreedorstronglydisagreedtotheuseofCLAfor
thepurposeofleanmusclemassgain.Whenanalyzingquestionsthreeandfive,an
increase in respondents indicated that theywould bemore likely to use CLA for
lean-musclemassgainthanforweightloss.
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5.IwoulduseCLAtogainleanmusclemass
Neutral Disagree Strongly
Disagree
Agree StronglyAgree
47% 20% 17% 15% 2%
Togatherwhat informationparticipantshadaboutCLA,questionsixof the
surveyinquiredaboutwhereorhowparticipantslearnedaboutCLAandwhythey
beganusing it. Themajorityof therespondentshadnevertriedCLA,butof those
whohad, the largestpercentage said theyhad readarticles featuring testimonials
fromotherswhohadexperiencedpositiveresultsfromtakingCLA.
6.IamusingorhaveusedCLAbecause:
Mycoach,personaltrainerornutritionistrecommendedit. 5%
Someonesuggesteditwouldworkforme. 7%
Ihavereadarticleswithtestimonialsonitseffectiveness 8%
Ihaveseenhoweffectiveitisinsomeoneelse. 2%
Itryeverythingnewtoseeifitworksforme. 2%
IhavenottriedCLA. 88%
Question seven inquired if participants were aware of food sources that
contain CLA. The largest percentage of those surveyed was not aware of food
sources.Thosewhowereawareoffoodsourceswereaskedtogiveexamples.The
followingaretheexamplesparticipantsgave:dairy,redmeat,grassfedcattle,lamb,
turkey, kangaroo meat, eggs, some mushrooms, and sunflower. One respondent
stated,“Significantsources[ofCLA]canonlybeobtainedfromsupplements”.
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7.IamawareoffoodsourcescontainingCLA
NotAware SomewhatAware VeryAware
77% 17% 6%
Question eight inquired about the belief participants had regarding the
consumption of CLA to assist with weight loss. The largest portion of the
respondents said they were neutral followed by those who agreed that
supplementingwithCLAwouldhelpthemloseweight.
8.IbelievesupplementingwithCLAwillhelpmeloseweight
Neutral Agree Strongly
Disagree
Disagree StronglyAgree
74% 10% 8% 6% 2%
Question nine inquired about the belief participants had regarding the
consumption of CLA to assist with gaining lean body mass. Again the largest
percentage of those individuals surveyedwere neutral on the subject while 13%
agreed that supplementing with CLA would help them gain lean muscle mass. A
slightly larger percentage agreed that supplementing with CLA would help them
gainlean-musclemassthantohelpthemloseweight.
9.IbelievesupplementingwithCLAwillhelpmegainleanmusclemass
Neutral Agree Strongly
Disagree
Disagree StronglyAgree
71% 13% 8% 6% 2%
Whenrespondentswereaskediftheywereawareofeffective
amountsofCLAtosupplementwithinquestionten,mostwerenotawarewhile
16
14%indicatedthattheyweresomewhataware.Thisquestionmayhavebeen
confusingforparticipantsbecauseitisunclearwhataneffectivedosemaybe.CLA
supplementbottlestypicallycontainmilligramcapsuleswhileinstructionsindicate
totheconsumertotakegramdosages;manyconsumersmaynotknowthe
conversionofmilligramstograms.Manufacturersrecommendsupplementingwith
one-fourg/dwhilemanyscientificstudiesusedarangeof1.5g/dayto7g/day.Itis
unclearwhateffectivedosesmaybe.
10.IamawareofeffectiveamountsofCLAtosupplementwith
NotAware SomewhatAware VeryAware
80% 14% 6%
Whenaskedifparticipantswerefamiliarwithscientificliteratureregarding
theusesofCLAinquestion11,mostwerenotfamiliar.Therehasbeenagreatdeal
ofresearchconductedontheefficacyofCLAforthepurposeofweightlossandlean-
musclemassgaininbothanimalandhumansubjects.ResearchindicatesthatCLA
isveryeffectiveinanimals.Resultsareinconclusiveinhumanmodels,which
indicatesthatfutureresearchneedstobeconducted.
11.IamfamiliarwithscientificliteratureregardingtheusesofCLA
NotFamiliar SomewhatFamiliar VeryFamiliar
76% 22% 2%
Question12inquiredaboutnegativesideeffectsparticipantsmayhave
experiencedwhensupplementingwithCLA.Mostrespondentswereneutral
followedbythosewhodisagreedtohavingexperiencedsideeffects.Participants
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whohadusedCLAlistedthefollowingnegativesideeffects:upsetstomach,nausea
andincreasedmusclesorenesswhenworkingoutandtakingsixgramsperday.
12.IhavesupplementedwithCLAandexperiencednegativesideeffects
Neutral Strongly
Disagree
Disagree Agree StronglyAgree
60% 19% 19% 2% 0%
Question13askedifparticipantswereawareofwhatchemicalformsofCLA
aremosteffective.Ofthe127participantstoanswerthisquestion,114respondents
werenotawareofwhichchemicalformwaseffect,while13wereeitherveryaware
orsomewhataware.Mostofthosewhoparticipatedinthesurveywereunawareof
whichchemicalformofCLAtotake.ThetwomostcommonisomersusedinCLA
researcharet10,c12andc9,t11.T10,c12issaidtoincreaseweightlosswhilec9,
t11issaidtoincreaseleanmusclemass.WhenpurchasingCLA,itisunclearwhich
isomertheconsumerispurchasingbecauseitisnotlabeledonthebottle.Most
manufacturersproducecapsulescontainingamixtureofthetwoisomers.
13.IamawareofwhichchemicalformofCLAismosteffective
NotAware SomewhatAware VeryAware
90% 8% 2%
SurveyparticipantswereaskedwheretheyweremostlikelytopurchaseCLA
inquestion14.Approximatelyhalfindicatedthattheywoulddosoatahealthfood
storefollowedbytheInternet,apharmacy,agrocerystoreandother,respectively.
CLAisrelativelysimpleandconvenienttopurchase.Onecanfindcommonformsof
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productinmostlocalpharmacies,healthfoodstoresorthroughvariouswebsiteson
theInternet.
14.IfIweretopurchaseCLA,Iwouldmostlikelydosothrough
AHealthFood
Store
TheInternet APharmacy AGrocery
Store
Other
47% 18% 15% 11% 9%
Question15inquiredwhetherornotrespondentswouldrecommendtheuse
ofCLAtoothersforthepurposeofweightloss.Mostoftheparticipantswhowere
surveyedwereneutralfollowedbythosewhostronglydisagreedtorecommending
theuseofCLAtoothersforweightloss.
15.IwouldrecommendusingCLAtoothersforweightloss
Neutral Strongly
Disagree
Disagree Agree StronglyAgree
66% 17% 13% 4% 1%
ThefinalquestionaskedparticipantsiftheywouldrecommendusingCLAto
othersforthepurposeofleanmusclegain.Againmostrespondentswereneutral
followedbythosewhostronglydisagreedtorecommendingtheuseofCLA.
16.IwouldrecommendusingCLAtoothersforgainingleanmusclemass
Neutral Strongly
Disagree
Disagree Agree StronglyAgree
68% 14% 11% 7% 1%
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Ofthosesurveyed,morewouldrecommendtheuseofCLAforlean-muscle
massgainthanforweightloss.Anoveralltrendthroughoutthissurveywasfor
usingCLAforlean-musclemassgainratherthanweightloss.Whenaskedifthey
woulduseCLAforweightlossorlean-musclegain,morerespondentsindicatedthat
theywoulduseifforlean-musclegain.Whenaskediftheybelievedsupplementing
withCLAhelpedthemloseweightorgainlean-musclemass,morerespondents
agreedthatitwouldhelpthemgainlean-musclemass.Andfinallywhenaskedif
theywouldrecommendusingCLAtoothersforweightlossorlean-musclemass
gain,morerespondentsagreedtorecommendingitforlean-musclemassgain.
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Conclusion
Extensiveresearchhasbeenhasbeenconductedinbothanimalandhuman
models,whichdemonstrate theefficacyofCLAasbothaweight lossor leanbody
mass gain. Conversely, very little research has been conducted concerning the
practical human application of CLA (i.e. the frequency of supplementation,
information individualsposses,perceptionsabout,andgeneralexperiencespeople
havehadwithCLA).Thepurposeof this studywas to gather a limitedamountof
applicable information to begin to fill the noticeable information void. A sixteen
statementconfidentialonlinesurveywasprovidedforanumberofparticipantsto
share their opinions and understanding of CLA. When survey participants were
askedabouttheirfamiliaritywithapplicablescientificliterature,mostrespondents
indicated theywerenot. Of thoseparticipantswhohad supplementedwithCLA,
many chose to do so because of published articles featuring testimonials of users
whohadexperiencedpositiveresultswhilesupplementingwithCLA.
The survey results showed that while only a small population of survey
participantshadgeneralinformationaboutCLA,alargerpercentageofparticipants
indicatedthattheywouldbothuseand/orrecommendtheuseofCLAforleanbody
massgainmorethantheywouldforweightloss.Basedonthisfinding,itwouldbe
beneficial to conduct further product research amongst a narrower sample
populationsuchasbodybuilders.
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