Duk da wasu ke cewa collagen ba shi da amfani ga tsokoki, wani gwaji na bazuwar da aka gudanar a kan manya maza masu ƙarancin ƙashi ya nuna akasin haka. Bayan makonni 12 na horon ƙarfi, maza da suka sha gram 15 na collagen peptides a kowace rana sun ƙara kusan kashi 45 % na ƙashin ƙashi mara kitse (+4.2 kg vs +2.9 kg) kuma sun ninka ƙarfin ƙafafunsu idan aka kwatanta da rukunin placebo. Sai dai, placebo ba shi da protein, don haka ƙara protein kaɗai na iya yin wani ɗan tasiri. Wannan labarin ya fayyace abin da binciken ya gano, dalilin da ya sa collagen zai iya taimakawa, da kuma waɗanda suka fi amfana da shi.
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