Fitnesssport. (án ártals). C4-cellucor. Sótt 20.maí 2016.

http://www.fitnesssport.is/product/c4-cellucor/ 

Best workout supplements blog. (án ártals). How Much Caffeine Is In Pre Workout Supplements . Sótt 20.maí 2016.
http://www.bestworkoutsupplementsblog.com/much-caffeine-pre-workout-supplements/

Mast. (án ártals). Koffín neysla og áhrif. Sótt 20.maí 2016.

http://www.mast.is/Uploads/document/Baeklingar/Koffin_baeklingur.pdf

Matvælastofnun. (8.1.2010.) Hversu mikið koffín er í einum kaffibolla? Sótt 20.maí 2016.

http://www.visindavefur.is/svar.php?id=29263

Bodybuilding. (án ártals). Essential Amino Energy. Sótt 20.maí 2016.

http://www.bodybuilding.com/store/opt/essential-amino-energy.html

Perform. (án ártals). Amino Energy 270 g. Sótt 20.maí 2016.

http://www.perform.is/product_info.php?products_id=379

​

That feeling when your preworkout kicks in. (2015). [https://www.youtube.com/watch?v=nIqn8r_F_4g]. 

Patrick Hocking. (ekki gefið upp). Ekki gefið upp:Patrick Hocking.

Powerade. (án ártals). Powerade. Sótt 23.maí 

http://www.us.powerade.com/

Cellurcor. (án ártals) C4. Sótt 3.maí 2016.

https://www.cellucor.com/c4

Optimumnutrition. (án ártals). Essential Amino Energy. Sótt 23.maí.

http://www.optimumnutrition.com/en_US/products/amino-energy

​

Steinar B. Aðalbjörnsson. (16.7.2011.) Kaffidrykkja íslenskra barna er staðreynd. Sótt 24.maí 2016.

http://www.mbl.is/greinasafn/grein/1385715/

Tia Ghose. (15.12.2015). The Truth about Pre-Workout Supplements. Sótt 24.maí 2016.

http://www.livescience.com/53095-do-preworkout-supplements-work.html

Cari Nierenberg. (5.október 2015). 10 Interesting Facts About Caffeine. Sótt 24.maí 2016.

http://www.livescience.com/52383-interesting-facts-about-caffeine.html

Hallgrímur Indriðason. (01.01.15). Ragnheiður Runólfsdóttir. Sótt 24.maí.

http://sportpress.is/1991-ragnheidur-runolfsdottir/ 

Margrét Lára Viðarsdóttir (munnleg heimild, 24.maí 2016.)

Guðbjörg Guðmannsdóttir (munnleg heimild, 24.maí 2016.)

Elísabet Reynisdóttir (tölvupóstur, 24.maí 2016.)

Sara Rún Markúsdóttir (tölvupóstur, 24.maí 2016.)

Ragnheiður Runólfsdóttir (tölvupóstur, 24.maí 2016.)

Anna Úrsúla Guðmundsdóttir (tölvupóstur, 24.maí 2016.)

​

Bjarney Bjarnadóttir (tölvupóstur, 25.maí 2016.)

Kastljós fjallar um fæðubótarefni. (16.02.15). [https://www.youtube.com/watch?v=Bg3OqRXXlPY]. Vantrú. (enginn tengsl milli höfundar við verk). Reykjavík: Reykjavík:Rúv.

Maraþon. (án ártals). Powerade. Sótt 26.maí.

http://marathon.is/powerade-powerade

Jónína Ómarsdóttir. (02.05.03). Notkun íþróttadrykkja og orkugels og vökvainntaka meðal hlaupara á Íslandi. Sótt 26.maí

http://hlaup.is/upload/files/Ritgerd-Ithrottadrykkir.pdf

Smári Pálmarsson. (28.06.2014). Hversu mikið er of mikið. Sótt 30.maí.

http://bleikt.pressan.is/lesa/koffin-hversu-mikid-er-of-mikid/

Matvælastofnun. (án ártals) Áhrif koffíns. Sótt 30.maí

http://www.mast.is/matvaeli/almennar-upplysingar/koffin/

​

Myndir

https://www.google.com/search?q=sports+drinks+amino,+pre+workout+and+powerade&safe=strict&espv=2&biw=1440&bih=828&source=lnms&tbm=isch&sa=X&ved=0ahUKEwitycrv_e_MAhVFIMAKHWHUBDwQ_AUIBigB#safe=strict&tbm=isch&q=sports+drinks+amino%2C+pre+workout+&imgrc=9_Fe3BXXXjjjwM%3A

https://www.google.is/search?q=powerade&safe=strict&biw=1440&bih=828&source=lnms&tbm=isch&sa=X&ved=0ahUKEwik-oeE_-_MAhVCJMAKHe1YCgQQ_AUIBigB#safe=strict&tbm=isch&q=pre+workout+meme&imgrc=_

https://www.google.com/search?q=c4&safe=strict&source=lnms&tbm=isch&sa=X&ved=0ahUKEwj54feAjvDMAhUnCsAKHeDIBUgQ_AUIBygB&biw=1440&bih=784#safe=strict&tbm=isch&q=c4+pre+workout&imgrc=pa14qdcEQZNKkM%3A

http://www.mbl.is/myndasafn/mynd/173030/

https://www.google.com/search?q=gu%C3%B0bj%C3%B6rg+gu%C3%B0mannsd%C3%B3ttir&safe=strict&espv=2&biw=1440&bih=784&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjtxJTgy_fMAhWrCcAKHSrDCJEQ_AUIBigB#imgrc=dr8PkQp0x8S1nM%3A

https://www.google.com/search?q=gu%C3%B0bj%C3%B6rg+gu%C3%B0mannsd%C3%B3ttir&safe=strict&espv=2&biw=1440&bih=784&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjtxJTgy_fMAhWrCcAKHSrDCJEQ_AUIBigB#imgrc=BEMOCVMdT2gXPM%3A

https://www.google.is/search?q=anna+%C3%BArs%C3%BAla&safe=strict&biw=1440&bih=748&tbm=isch&source=lnms&sa=X&ved=0ahUKEwiNqL2NxvfMAhUjLsAKHUjLCmkQ_AUIBigB&dpr=1#safe=strict&tbm=isch&q=bjarney+bjarnad%C3%B3ttir&imgrc=DwYc2rUZBOWjIM%3A

https://www.google.com/search?q=margr%C3%A9t+l%C3%A1ra&safe=strict&source=lnms&tbm=isch&sa=X&ved=0ahUKEwj9wPDiy_fMAhXiC8AKHZigCu4Q_AUIBygB&biw=1440&bih=748#imgrc=IjILcWtUIwlgHM%3A

https://www.google.com/search?q=margr%C3%A9t+l%C3%A1ra&safe=strict&source=lnms&tbm=isch&sa=X&ved=0ahUKEwj9wPDiy_fMAhXiC8AKHZigCu4Q_AUIBygB&biw=1440&bih=748#imgrc=rcC9qt2_ga5NeM%3A

https://www.google.com/search?q=anna+%C3%BArs%C3%BAla&safe=strict&espv=2&biw=1440&bih=784&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjY4dbky_fMAhVmJsAKHRuBBF0Q_AUIBigB#imgrc=pCxf3FzcnvI43M%3A

https://www.google.com/search?q=anna+%C3%BArs%C3%BAla&safe=strict&espv=2&biw=1440&bih=784&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjY4dbky_fMAhVmJsAKHRuBBF0Q_AUIBigB#imgrc=SW2DcT0jAWX3WM%3A

https://www.google.is/search?q=surveymonkey&safe=strict&espv=2&biw=1440&bih=694&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjIt4yBz4HNAhXBCMAKHU-oDwQQ_AUIBigB#imgrc=0lGIj0KvKSMwUM%3A

https://www.google.is/search?q=koff%C3%ADn+og+b%C3%B6rn&safe=strict&biw=1440&bih=658&source=lnms&tbm=isch&sa=X&ved=0ahUKEwja1fKb44HNAhXLIsAKHe93BMkQ_AUIBigB#imgrc=InnhVAK50HIQ5M%3A

https://www.google.is/search?q=hafd%C3%ADs+kristj%C3%A1nsd%C3%B3ttir+yoga+kennari&safe=strict&espv=2&biw=1440&bih=784&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiovfmvpITNAhXDBcAKHdTJAOkQ_AUIBigB#imgrc=MLpRye8j11NYAM%3A

​

​

​

​

​

​

​

​

​

​