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Wide landscape editorial photograph of a mountain biker mid-ride on a dusty red-orange singletrack trail in the South African Western Cape, golden hour light raking across the scene. The rider is in sharp focus on the right third of the frame, wearing a weathered cycling kit with a race number plate on the handlebars, dust kicking up from the rear tire. Behind them, rolling hills covered in fynbos shrubland and silhouetted protea plants fade into soft, hazy blue mountains. Warm amber sunlight creates long shadows and a soft rim light around the rider and bike. In the lower left foreground, slightly out of focus, a small minimalist glass vial and a clear water bottle sit on a flat sun-bleached rock, with a few drops of liquid catching the light. Next to them, a simple matte paper notecard and a pencil suggest data collection, with no legible text. The vial and bottle are clean, understated, and modern, with no branding. The color palette is earthy and refined: terracotta, ochre, sage green, dusty teal sky, and cream highlights. The composition uses shallow depth of field, a generous negative space in the upper left sky for headline overlay, and subtle film grain. The mood is contemplative, skeptical, and quietly sophisticated, like a feature photograph from a high-end outdoor sports and science magazine. Natural, candid, cinematic, shot on a 50mm lens with soft contrast and muted saturation. No futuristic elements, no glowing effects, no molecular graphics, no text.
Science & Research

Ketone IQ Ya Ɗaga Ketones a Cape Epic, Amma Bai Samu Tasiri ba

Dr. Gymbro · · 5 min read
#recovery #supplements #endurance #cycling #ketone iq #butanediol #ketones

Takaitaccen Bayani

Kwana takwas. Daruruwan kilomita na hanyar dutse mai tsanani a Afirka ta Kudu. Sau biyu a rana ana sha abin sha mai daraja na ketone. A ƙarshen, masu tuka da suka sha Ketone IQ sun yi daidai da waɗanda suka sha placebo – a gani, ji da kuma yadda suka yi.

Wannan shi ne taken wani sabon gwajin double‑blind da aka wallafa a European Journal of Sport Science, kuma yana ba da wani ƙididdiga mai amfani ga duk wanda ke tunanin amfani da ƙarin ketone domin murmurewa.

Menene Masana suka Gwada?

Engelbrecht da ƙungiyarsa sun bi sahun masu tuka keke na dutsen da suka horar (mountain bikers) guda 18 (a ƙungiyoyi 10) a tseren Absa Cape Epic 2025, wata gasa ce da ake yi tsawon kwanaki takwas da ke da matakai da dama. An rarraba su zuwa biyu: waɗanda suka sha 87.5 mL na Ketone IQ, wanda ke ɗauke da sinadarin aiki R‑1,3‑butanediol (BDO), ko kuma suka sha madadin wuri (placebo). An ba su wannan ruwan sau biyu a rana – bayan kowane mataki da safe bayan kwanciya.

Ƙungiyar ta tattara alamu da dama na ainihin rayuwa:

  • Bugun zuciya, duka yayin motsa jiki da a hutu
  • Yawan kuzari da abincin carbohydrates da ake ci
  • Shayar da ruwa (hydration)
  • Bayanai kan bacci
  • Ayyukan tunani, ciki har da lokutan amsa (reaction time)
  • Jin damuwa da yadda ake murmurewa (subjective stress & recovery)

Wannan shi ne ainihin manufar binciken. Yawancin binciken ketone ana yin su a dakunan gwaje‑gwaje ne kawai. Anan an tambayi ko BDO zai iya taimakawa a yanayin gajiya, bacin bacci da matsin lamba na abinci da ke haifar da gajiya cikin mako guda na tseren.

Sakamakon Da Ya Sha Ban Mamaki: Ketosis, Amma Babu Amfani

Abin sha ya cika abin da ya ƙunsa a sinadarai na jini. BDO ya haifar da ketosis mai sauƙi, kusan 1.0 mM na β‑hydroxybutyrate (BHB), tun daga mataki na farko.

Amma fa, amfanin ba su biyo baya ba. A duk tsawon tseren, ƙungiyoyi biyu sun nuna irin alamu iri ɗaya na ƙaruwa a gajiya:

  • Ƙarancin bugun zuciya yayin motsa jiki
  • Ƙaruwa a bugun zuciya a hutu
  • Ɗaga yawan kuzari da carbohydrates da ake ci
  • Jinkirin lokutan amsa daga mataki na 6

BDO bai canza waɗannan alamu ba idan aka kwatanta da placebo. Taken takardar ya bayyana a fili: post‑exercise BDO bai inganta alamun gajiya ko murmurewa ba. Marubutan sun kammala da cewa, ƙananan ketosis ba ta da tasiri a yanayin tseren na ainihi.

Wannan al'amari ya zama kamar hoton littafi na gajiya da ke taruwa a tseren matakai da dama, kuma abin sha na ketone bai iya karkatar da shi ba.

Butanediol Ba Kamar Ketone Ester Ba

Wannan shi ne ɓangaren da masu saye suka fi rasa fahimta. “Ketone supplement” na nufin nau’o’i da dama.

Adabin da marubutan suka ambata yana mai da hankali kan ketone monoester (KME), wanda aka danganta da ƙarin murmurewa da rage damuwar jiki a lokacin motsa jiki na nisa. BDO kuwa wani precursor ne na ketone: jiki dole ne ya juya shi zuwa BHB, ba kai tsaye yake ba. A ka’ida, wannan hanya tana samar da ƙananan matakan ketone a jini idan aka kwatanta da monoester, kuma kusan 1 mM da aka samu a nan ya dace da wannan ra’ayi.

Marubutan kansu sun jaddada wannan batu, suna kira ga “bincike na takamaiman ƙira”. A sauƙaƙe, sakamakon rashin tasiri na BDO ba yana nufin cewa ketone esters ba su da amfani ba, kuma sakamakon mai kyau daga ester ba yana nufin BDO zai yi aiki ba. Su daban‑daban ne da hujjojin su ma daban.

Menene Wannan Ke Nufi Ga Mai Son Sayi?

Binciken bai nuna cewa ketone ba su da amfani kwata‑kwata ba, amma ya rage tunanin cewa Ketone IQ wata hanya ce mai saurin murmurewa ga tsare‑tsaren nisa na kwanaki da dama.

  • Matsakaicin adadi da lokacin da aka gwada: 87.5 mL sau biyu a rana, bayan motsa jiki da kafin kwanciya. Wannan shine tsarin da ba ya haifar da canji a alamun murmurewa a nan. Shan ƙarin ko a lokuta daban ba a gwada ba.
  • Wanene zai iya cin moriyar sa ba: Idan babbar burinka shi ne samun murmurewa, bacci mai kyau ko sabuwar ƙarfi a kowanne rana a cikin tseren matakai, wannan gwaji ba ya ba da shaida da ke tallafa wa hakan.
  • Ina za ka fi kashe kuɗi? Masu tuka a rukuni biyu sun ƙara cin carbohydrates da kuzari yayin tseren. Kula da abinci, bacci da shan ruwa na da hujja sosai a matsayin alƙawarin saka jari kafin ka ɗauki wani ƙarin sinadari da ba a tabbata.
  • Ka tabbata da sinadarin: Idan kana saye, duba ko samfurin yana dauke da BDO ne ko ketone ester, kuma kar ka ɗauka cewa sakamakon daya ya shafi ɗayan.

Ƙuntatawar Gwaji Da Za a Lura Da Su

Wannan karamin bincike ne, kuma wasu abubuwa suna da tasiri:

  1. Yawan mahalarta: Masu tuka 18 ne kacal. Gwaji ƙarami na iya rasa tasirin da ba shi da ƙarfi sosai, don haka “babu bambanci da aka gani” ba yana nufin “babu tasiri kwata‑kwata”.
  2. Masu tuka a ƙungiyoyi: Ƙungiyoyi 10 suna kawo tarin bambance‑bambancen ainihi – kamar yadda aka tsara gudu, yanayin ƙasa da buƙatun matakai daban‑daban – waɗanda gwajin daki ba zai iya kawar da su ba.
  3. Sinadari, adadi, lokuta guda: Sakamakon yana ƙuntata ga wannan samfurin na BDO, a wannan adadi, a irin jadawalin da aka yi amfani da shi. Ba ya magana kan amfani kafin motsa jiki ko wasu siffofi.
  4. Ketosis mai sauƙi: BHB ya kai kusan 1.0 mM. Shin matakin da ya fi girma zai iya canza sakamakon ba a gwada ba.

Duk da haka, fasalin binciken shi ne ƙarfi. Gwaji double‑blind, da aka yi a ainihin tseren kwanaki takwas, abu ne mai wahala a aiwatar; kuma yana ba da nau’in hujja mai inganci da yawanci tallan ƙarin sinadarai ke rasa.

Ƙarshe

Ketone IQ ya ƙara ketones a jinin masu tuka a Cape Epic, amma bai rage gajiya, ba ya ƙara saurin amsa, kuma bai inganta murmurewa idan aka kwatanta da placebo. Don ‘yan wasa masu juriya da ke tunanin siyan abin sha mai tsada na ketone, wannan sakamakon na nuna cewa ya kamata su yi taka‑tsan‑tsan da BDO a matsayin hanyar murmurewa. Bincike mafi girma, tare da kwatanta kai tsaye da ketone esters, zai ba da amsa mafi cikakke.

Manbobi: Engelbrecht et al., “Post‑Exercise R‑1,3‑Butanediol did not Improve Markers of Fatigue or Recovery During a Multi‑Stage Mountain Bike Race,” European Journal of Sport Science (2026). DOI: https://doi.org/10.1002/ejsc.70260. PubMed: https://pubmed.ncbi.nlm.nih.gov/42852530/

Original study

Read the original research on pubmed.ncbi.nlm.nih.gov →

This article summarizes published research for general information. It is not medical advice.

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Dr. Gymbro

Dr. Gymbro writes for Dr. Gymbro: science-backed fitness, nutrition & performance.

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