Ka Tuna Ka Duba Ma’aunin Kaza… Babu Canji

Wataƙila ka ga ma’aunin kiba ya tsaya a wuri guda, amma a hakikanin gaskiya jikinka na musayar kusan rabi kilo na kitse da rabi kilo na tsoka a hankali. Wannan shi ne sakamakon wani bincike double‑blind da aka gudanar a kan manya marasa cuta, wanda ya kuma nuna alaka tsakanin raguwar cortisol da wannan sauyi. Nazarin ya ƙunshi mahalarta ƙanana, don haka mu dubi ainihin abun da ke cikin bayanan da abin da ya kamata mu kula da su.

Binciken: Abin Da Aka Aiki Da Gaskiya

Masana daga Gettysburg College karkashin jagorancin Eric Noreen sun wallafa sakamakon a Journal of the International Society of Sports Nutrition a shekara ta 2010. Gwajin ya kasance randomized, double‑blind, placebo‑controlled tare da mutane 44 (maza da mata) masu shekara‑matsakaici 34 ± 13.

An raba mahalarta gida biyu na mako 6:

• Ƙungiyar man kifin: 4 g a rana na man kifin, wadda ke ba da 1,600 mg EPA da 800 mg DHA (kimanin gram 2.4 na omega‑3 gaba ɗaya).
• Ƙungiyar sarrafa: 4 g a rana na man safflower.

Duk gwaje‑gwajen an yi su da safe bayan azumi. An auna resting metabolic rate (RMR) ta hanyar indirect calorimetry da facemask, an auna rabe‑raben jiki ta air displacement plethysmography (Bod Pod), sannan an tattara saliva mai‑passive drool don auna cortisol.

Sakamako Mai Muhimmi: Kitse Ya Ragu, Tsoka Ta Ƙaru

Idan aka kwatanta da man safflower, man kifin ya haifar da canje‑canje kamar haka:

• Fat‑free mass (masa mara kitse): +0.5 ± 0.5 kg vs. -0.1 ± 1.2 kg (p = 0.03)
• Fat mass (masa kitse): -0.5 ± 1.3 kg vs. +0.2 ± 1.2 kg (p = 0.04)
• Kashi na kitse a jiki: -0.4 ± 1.3 % vs. +0.3 ± 1.5 % (ba mai muhimmanci, p = 0.08)
• Nauyin jiki: 0.0 ± 0.9 kg vs. +0.2 ± 0.8 kg (ba bambanci mai muhimmanci)

Wannan yana nuni da cewa ma’aunin ya tsaya a wuri guda, amma rabe‑raben jiki ya sauya: an samu ƙarin lean mass da ragin kitse, duk da cewa kusan ba a sami canjin nauyi ba. Idan ka duba kawai nauyin jiki, za ka rasa wannan muhimmin canjin.

Cortisol: Dodo Mai Kiqua

Masana sun auna cortisol a cikin saliva – hormone da ke alaka da damuwa, kuma a matakai masu tsanani na iya haifar da ajiye kitse da rushe tsoka. A ƙungiyar man kifin, cortisol ya sauka -0.064 ± 0.142 µg/dL, yayin da a ƙungiyar sarrafa ya tashi +0.016 ± 0.272 µg/dL. Wannan bambanci ba ya da muhimmanci statistically (p = 0.11).

Duk da haka, a ƙungiyar man kifin, canjin cortisol ya yi alaka mai ƙarfi da:

• Fat‑free mass (r = -0.504, p = 0.02)
• Fat mass (r = 0.661, p = 0.001)

Wannan na nufin mutanen da cortisol ɗinsu ya ragu sosai, su ne suka fi samun ƙarin tsoka da ragin kitse.

Fahimtar Gaskiyar: Abin Da Binciken Ba Ya Nuna

• Tasirin yana ƙanana. Kusan 0.5 kg a kowanne ɓangare, tare da bambancin mutum‑mutum mai girma. Standard deviation na canjin kitse (±1.3 kg) ya fi girman matsakaicin canjin, don haka wasu za su ga ƙasa da ko babu canji.
• Adadin mahalarta ƙanana ne. Mutane 44 a cikin 6 kweeks ba su isa ba don kammala hujja. Ana buƙatar maimaita nazari.
• Cortisol alaka ce kawai. Bambancin cortisol tsakanin ƙungiyoyi ba shi da muhimmanci, kuma alakar da aka samu a cikin ƙungiyar ɗaya ba ta tabbatar da cewa cortisol ne ke haifar da sauyin jiki ba.
• Metabolism bai canza ba. RMR ya kasance kusan ba a bambanta ba (+17 ± 260 kcal da man kifin vs. -62 ± 184 kcal da safflower). RER ma bai nuna bambanci ba. Don haka “ƙaruwa a metabolism” ba ta da hujja.
• Hanyoyin auna na da iyaka. Air displacement plethysmography ingantacciya ce, amma canje‑canjen rabi kilo na iya kasancewa kusa da kuskuren auna; canjin ruwa a jiki na iya shafar sakamakon.
• Wanene aka yi wa gwaji? Manyan marasa lafiya, ba masu kiba ba ko ‘yan wasa masu horo mai tsanani. Sakamakon ba ya magana kan waɗanda ke son rage kiba ko masu horo na ƙwarai.

Me Wannan Ke Nufi A Gashinka?

Adadin da aka gwada: 4 g a rana na man kifin, wadda ke ba da 2.4 g na EPA + DHA (1.6 g EPA, 0.8 g DHA). Wannan ne kawai adadin da nazarin ya gwada; duk wani ƙari da ka yi shi ne ƙara a hankali.

Karanta alamar sosai. “1,000 mg man kifin” ba yana nufin 1,000 mg na EPA/DHA ba. Yawanci 1 g na man kifin yana ɗauke da kusan 300 mg na omega‑3s. Duba takardar sinadarai don sanin adadin EPA da DHA, sa’an nan ka ƙirga. Samun gram 2.4 na iya buƙatar kusan ƙwayoyi 8 na al'ada ko ƙasa da haka idan kana amfani da samfur mai ƙarfi.

Lokaci na sha: Takardar ba ta gwada yadda za a raba adadin ba. Hanya mafi sauƙi ita ce a ci tare da abinci, domin kitse a abinci na taimaka wa sha da rage ƙamshi na kifin. Raba adadin a cikin abinci daban‑daban na iya zama hanya mai sauƙi.

Tsawon lokaci: Gwajin ya ɗauki makonni 6. Ba a san ko fa’idodin za su ci gaba, su daidaita, ko su ragu bayan wannan lokacin ba.

Waɗanda za su amfana:

• Manyan marasa lafiya da ba su cika cin kifi ba, kuma suke buƙatar ƙaruwa da omega‑3s.
• Mutanen da ke son re‑composition (sauya kitse da tsoka) amma suna sane da cewa tasirin zai zama ƙanana.

Waɗanda ya kamata su guje shi ko su tuntuɓi likita:

• Duk mai shan magungunan rage jini (anticoagulants) ko yana da matsalar zubar jini.
• Mutanen da ke da allergy ga kifin ko ɓangaren ƙasa.
• Masu fama da cututtukan zuciya, masu ciki, ko wasu yanayi na kiwon lafiya waɗanda ke buƙatar hayar likita kafin su ɗauki manyan adadi na omega‑3s.
• Duk wanda ke tsammanin zai rage kitse nan take – wannan ba zai faru ba.

Karshe

A wannan double‑blind trial, makonni 6 na kusan gram 2.4 a rana na EPA + DHA sun haifar da kusan 0.5 kg ƙarin lean mass da 0.5 kg ragin kitse idan aka kwatanta da man safflower, yayin da nauyin jiki ya tsaya iri ɗaya. Raguwar cortisol ta biyo waɗannan canje‑canje, amma alaka ce kawai, ba dalili ba. Metabolic rate bai canza ba. Don haka, man kifin na da tsaro, tasiri ƙanana, kuma ya fi dacewa a hadashi da abinci mai kyau da horo, ba a matsayin hanyar maye gurbin su ba.