Daging merah mengandung protein yang cukup dan kompit dengan semua asam amino esensial yang mudah dicerna.
Asam amino esensial ada 9 yang tidak bisa dibuat di dalam tubuh harus didapatkan dari makanan, dan total ada 22 jenis asam amino yang dibutuhkan untuk membangun banyak bagian badan seperti otot, sel darah merah, sistem imun, saraf, organ-organ, dan segalanya yang dari protein di dalam tubuh kita.
Asam amino bisa didapatkan juga dari protein nabati tapi hanya sumber protein hewani yang lengkap ada semua sembilan asam amino esensial dan lebih mudah dicerna manusia dengan beragam enzim pencernaan yang ada.
Kualitas nutrisi protein di dalam daging merah lebih superior daripada protein lainnya apalagi dibandingkan dengan protein dari nabati yang tidak lengkap.
Kita bahas fungsinya asam amino penting ini satu-satu secara singkat:
Histidine penting untuk pertumbuhan sel-sel, khususnya untuk anak-anak dan untuk reparasi atau regenerasi sel-sel rusak pada dewasa.
Lanjut, isoleucine bersama dua asam amino lain (leucine dan valine) menguatkan otot dan membentuk hemoglobin juga penting untuk kadar glukosa darah serta metabolisme, juga penting dalam faktor pembekuan darah kalau kurang bisa rawan sakit jantung.
Next yang esensial adalah asam amino: leucine dibutuhkan untuk menstimulasi rilis insulin dari pankreas, melindungi otot dan meningkatkan produksi energi, menguatkan penyembuhan dan perbaikan kulit.
Bayangkan, baru tiga aja yang penting udah harus tidak boleh kekurangan, defisiensi tiga asam amino ini aja yang bikin kulit bermasalah, gula darah fluktuatif, metabolisme terganggu dan rasa kurang bertenaga serta sakit.
Lysine juga sangat penting untuk melawan infeksi, lalu methionine membantu fungsi biokimia dalam memecah lemak dan sebagai sumber sulfur untuk detoksifikasi cemaran logam berat kayak timbal dan merkuri.
Phenylalanine dibutuhkan untuk pembentukan protein dan kesehatan saraf serta otak juga beragam hormon lain termasuk tiroid juga penting untuk pembentukan adrenalin.
Threonine sangat dibutuhkan dalam pembentukan kolagen dan leastin pada kulit (ibu-ibu dan wanita mudah yang ingin kulitnya terus muda butuh ini)
Valine memicu kekuatan jaringan badan termasuk otot serta organ-organ, juga menjaga keseimbangan nitrogen di dalam tubuh.
Dan TRYTHOPHAN, yang sering saya sebut-sebut adalah asam amino penting untuk memproduksi niacin dan membuat serotonin sebagai pengatur mood supaya stabil dan terhindar dari depresi!
Trytophan ini amat sangat penting untuk fungsi berpikir pada otak dan saraf, menjaga emosi serta pereda nyeri atau sakit akibat inflamasi, peradangan di sistem ceran termasuk membuat tidur menjadi berkualitas.
Jika sehari aja kurang trytophan maka kadar serotonin menurun, bikin bete dan kurang tidur, daya ingat melemah alias gampang lupa dan malah mudah marah atau tersinggung. Lama-lama jadi depresi berat!
Bayangkan kalau diet berlebihan, kurang makan daging atau puasa kelamaan setiap hari, bakal malnutrisi serta mengacaukan kesehatan badan dan pikiran, bahkan ketidak cukupan salah satu aja dari sembilan asam amino yang esensial ini membuat kacau metabolisme dan mood, merugikan kesehatan dalam jangka panjang, dan kesembilan asam amino esensial ini hanya bisa dipenuhi dari makan, harus makanan, tubuh tidak bisa membuat sendiri.
Sumber utama asam amino esensial yang harus dimakan kalau tidak makan tidak akan bisa didapatkan makanya namanya esensial, dari 22 asam amino hanya 13 yang bisa disintesis di dalam tubuh sendiri tapi sisanya 9 tidak bisa tidak harus makan:
Histide: paling tinggi di daging merah, game meat, juga babi ada serta ikan seperti tuna, plus di ayam juga ada.
isoleucine: ada di putih telur dan ayamnya, juga kambing atau domba plus sapi, dan kepiting serta beberapa jenis ikan.
Leucine: juga di putih telur dan ayamnya, serta tuna dan daging merah.
Lysine: paling banyak di dada ayam, ada juga di daging dan ikan.
Methionine: Di putih telur juga ikan seperti tuna dan daging merah serta beragam sea-food seperti kepiting juga udang.
Phenylalanine: ada di daging sapi, babi, kambing, ayam, veal juga salmon.
Threonine: ada di daging dan telur walau di bayam juga ada sih, hihihi!
Valine: utamanya putih telur tapi daging dan juga sumber protein nabati ada.
Trytophan: banyak di daging ayam (kalkun) tapi yang tertinggi di daging singa laut!
Hahahaha.. Daging merah juga ada, putih telur juga bayam dan seaweed.
Dalam keju seperti parmesan, cheddar, mozzarella, romano, swiss, edam, gouda juga banyak trytophan, selain daging merah ada daging kelinci, ayam bagian dada dan paha, juga di ikan hallibut, salmon, makarel, dan Kakap!
Kekurangan asam amino esensial akan sangat merugikan kesehatan, utamanya terasa di otak: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3469761/
Lalu rambut rontok dan sistem reproduksi terganggu, tubuh lebih mentingin survival dulu daripada bikin anak, jadinya tidak subur dan siklus bulanan bisa berhenti, kalau tidak mati!
Karena kalau benar-benar kekurangan asam amino esensial memang bisa membawa kepada kematian.
Awalnya, kesehatan reproduksi bermasalah: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0028136
Gejala paling ringannya: susah tidur, berasa lelah dan banyak kecemasan, terlalu sering berpikir berulang, hingga depresi, berat badan berkurang di otot, terasa gampang capek tapi sulit terlelap, dan kulit serta kuku plus rambut jadi tampak tidak sehat!
Makanya:
1. Jangan kurang makan protein (yang berkualitas hanya dari sumber hewani dan paling komplit),
2. Harus perhatikan masalah sistem cerna jadi terganggu penyerapan protein oleh gangguan enzim atau bakteria,
3. Ketidakseimbangan hormonal khususnya resistensi insulin yang membuat penyaluran asam amino ke otot dan organ terganggu.
4. Kombinasi dari stres dan toksin yang menguras habis asam amino tertentu.
Jadi, jika sering berasa kurang tenaga, atau pikiran gampang bete hingga depresi, sulit berkonsentrasi malah gampang lupa, kelenjar tiroid berfungsi rendah, bergejala alergi dan sistem cerna bermasalah, organ-organ detoks tidak maksimal (ginjal dan kulit), lemak bertambah malah otot atropi atau mengecil dan berkurang, serta kuku retak-retak plus rambut rontok.
Itu tandanya udah sangat kurang makan daging, khususnya daging merah.
Kesimpulannya: Untuk sehat memang baiknya tidak makan setiap saat tapi tidak berarti berdiet ketat karena kita harus memenuhi kebutuhan gizi khususnya nutrisi esensial seperti dua lemak (omega 3 & 6) serta SEMBILAN asam amino yang harus didapatkan dari makanan, yang paling komplit dan kualitas tinggi: daging merah!
Sekian teleminar kali ini, terima kasih yang sudah menyimak!
Simpel: UUD alias ujung-ujungnya daging tapi ilmunya sebenarnya sangat kompleks tapi orang sering meremehkan, supaya sadar betapa dalamnya informasi ini, silahkan telusuri satu-satu jurnal ilmiah referensinya:
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