Sunday, February 27, 2011

Diet taknak makan nasi? Are you sure?

Bila bercakap pasal diet, ramai yang berfikir, diet yang paling cepat & berkesan is jangan makan nasi..in one part its true but others it’s not..i have discuss about this topic related to ‘takkan makan nasi sampai bila-bila’ diet program but since now I started a new topic on diet, let’s just have some revision on this..

Nasi (rice) is the main source of carbohydrate for people in Malaysia..in other countries, they consume wheat, oat, potatoes, etc but all this food provide the same macro nutrient – CARBOHYDRATE, plus some other nutrient in small amount..bagi yang kurang jelas what is exactly carbohydrate, carbohydrate is a polysaccharide that when consume by human, converted to glucose (sugar) and use to produce energy..meaning that, no nasi = no carbohydrate = no energy

What happen bila kita makan nasi? nasi akan di digest jadi glucose sebelum badan boleh serap..glucose further oxidize (maksudnya digest la lebih kurang) jadi pyruvate, NADH & ATP..bagi yang first time dengar bendalah ni, no need to understand deeply about the term, cukup la kalau tahu ATP tu la yang bagi energy..nak energy, badan terus convert glucose & producing ATP..ATP, tenaga tuk buat suma kerja harian, mandi, jalan gi kelas, main bola petang2 & berjoget time karok..without ATP, no energy..

Lain orang lain kuantiti ATP yang dia perlukan, bergantung kepada intensity of the activity they do, kalau stakat lepak tengok cita korea, takde la guna ATP sangat, tapi kalau lari pecut sebab dah 1 jam lambat gi final exam, tu memang banyak la ATP digunanya..

Camne pula kalu banyak makan nasi tapi tak banyak buat kerja? Excess glucose dalam badan akan di convert jadi glycogen, (tangki minyak emergency) sedia tuk guna incase emergency..sebab badan tak leh simpan glucose lama-lama, banyak glucose dalam darah buat darah jadi pekat, easy to clot = heart attack or stroke..

so, let say hari ni hari ahad & aku nak bersenang-lenang je..aku makan tengah hari ngan 3 pinggan nasi, pastu layan drama korea sampai malam pastu tido..most likely, glucose dari 3 pinggan nasi tu aku tak habis guna pun..so badan aku ni pun tukar la glucose tu jadi glycogen sebab taknak t darah beku & kena stroke..esoknya isnin, aku decide nak puasa..sebab layan korea sampai lewat malam, tak bangun sahur & tersedar pukul 8.30..sebab dah lambat, dengan tak mandinya (dengan subuh yang terbang skali) terus pecut g kelas..tengah hari tu pulak, masa nak balik kena kejar anjing gila tepi jalan, kena pecut lagi selamatkan diri..by evening, most likely semua glucose dalam badan aku dah habis guna sebab tak breakfast & makan tengah hari (puasa tadi kan..) time ni la emergency fuel tank (glycogen) akan diguna..badan akan covert balik glycogen tadi (dari nasi 3 pinggan semalam) jadi glucose to producing energy..

Tapi ape kes kalau hari-hari makan banyak nasi tapi takde kerja berat? Time tu barula glycogen tadi ditukar jadi fat, and kalau berterusan, result in accumulation of fat = obes..(macam kes aku ni la, mkn tido makan tido sedar2 dah 68kg)..

Ai, tadi kate tak betul diet tak makan nasi, tapi sekarang kata nasi buat gemuk, mana satu ni? Haaa..kan? (ayat favorite roommate aku, tak tahu knape dia suka sebut word ‘haaa…kan?’ nih..)

Tadi aku explain ape akan jadi kalau terlebih makan nasi, now I’ll explain ape akan jadi kalu tak cukup nasi..when we need energy, but our body running out of glucose, & glycogen pun dah habis (memang extreme tak makan nasi sampai tangki emergency pun kering) our body will look out for alternative fuel source (cam minyak gak la, bila petrol dah takde t tak tahu la kereta guna ape..nuclear kot) & for our body, alternative fuel source is protein..yup, it’s not fat..Fatty acid cannot serve as glucose precursors in animals (human) because they are degraded completely to acetyl-CoA. (ape kebenda nih? Huhu..) ayat aku tu just nak explain scientifically kenape tapi kalu tak paham cukup la kalau tahu yang bila glucose & glycogen habis, body will use amino acid ie protein tuk tukar jadi glucose in a process called Gluconeogenesis (nak sebut pun berbelit lidah nih). Kesannya, badan akan kehilangan jisim otot (sebab otot made of protein), our body will consume protein form our own muscle & not from body fat..you will lose weight but not fat..the only mass that you lost is muscle mass, skali ngan air, since our body composition is 70% water, and muscle yang hold air, so hilang muscle = hilang air as well..and bila hilang muscle mass, takyah la nak mimpi dapat 6 pack abs, tight arm, big biceps etc sebab not enough muscle to build it..

My advice, eat rice..in correct quantity..camne nak tahu banyak mana? I’ll explain next time..

Disclaimer: This post is only a guideline and additional reading material & not a professional advice..The author is not responsible for any health problem or injury happen to anyone who tried any method in this post. Please consult a doctor and professional fitness trainer before begin any diet/fitness program/weight loss program etc.

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