Lawan Kanker Hati Dengan Kulit Apel

JANGAN KUPAS: Kulit apel kandung antioksidan 4,7 kali lebih banyak dari buah apel dan memiliki zat quarcetin untuk lawan penyakit hati


JAKARTA - Mengkonsumsi satu apel setiap hari sudah terbukti menjadikan tubuhsehat. Namun itu tak berlaku jika anda memakan apel dengan mengupas kulitnya terlebih dahulu. Sebaiknya, buanglah kebiasaan tersebut karena anda akan kehilangan zat quercetin yang berpotensi melawan kanker dan penyakit hati.

Kulit apel memiliki aktivitas antioksidan dan bioaktivitas yang lebih tinggi dari pada buah apel karena mengandung antisoksidan yaitu quercetin. Vitamin C yang terdapat pada daging buah apel hanya mempunyai aktivitas antioksidan 1, sedangkan quercetin mempunyai aktivitas antioksidan hingga 4,7 kali.

Tentunya zat gizi yang terkandung dalam satu butir buah apel bukan hanya itu. Kemampuan apel sebagai pencegah penyakit juga terletak pada kandungan karoten dan pektinnya. Karoten memiliki aktivitas sebagai vitamin A dan juga antioksidan yang berguna untuk menangkal serangan radikal bebas penyebab berbagai penyakit degeneratif seperti kanker dan diabet melitus.

Sedangkan pektin merupakan satu tipe serat pangan yang bersifat larut dalam air. Karena merupakan serat yang berbentuk gel, pektin dapat memperbaiki otot pencernaan dan mendorong sisa makanan pada saluran pembuangan.

Pektin juga dikenal sebagai antikolesterol karena dapat mengikat asam empedu yang merupakan hasil akhir metabolisme kolesterol. Makin banyak asam empedu yang berikatan dengan pektin dan terbuang ke luar tubuh maka makin banyak kolesterol yang termetabolisme.

Selain itu pektin juga dapat menyerap kelebihan air dalam usus, memperlunak feses, serta mengikat dan menghilangkan racun dari usus. Konsumsi apel secara teratur juga dapat menjaga keseimbangan gula darah serta menurunkan tekanan kolesterol darah.

Semua zat-zat yang dikandung apel selain yang tersebut diatas juga mempunyai khasiat mencegah pembentukan tumor usus dan mencegah serangan tumor. Zat gizi tersebut tentunya tidak hanya terkandung di daging buah saja tapi juga kulitnya. Dengan demikian mengkonsumsi apel dengan kulit lebih baik dibandingkan tanpa kulit.

Namun beberapa apel impor biasanya dilapisi lilin dengan tujuan menghambat laju proses pembusukan. Karena lebih baik dimakan beserta kulitnya perlu upaya untuk menghilanhkan lapisan lilin tersebut dengan cara mencelupkan apel ke dalam air hangat agar lapisan lilin mencair kemudian digosok hingga bersih dan kering.

Saat membeli apel pun harus diperhatikan kondisi buah. Pilihlah apel yang kulitnya mengkilap, ujung buah bekas kelopak tampak merenggang dan bila dijentikan dengan jari akan terdengar suara nyaring.

Kandungan zat gizi dalam 100 gram buah apel adalah 58 kkal energi, 4 g lemak, 3 g protein, 14,9 karbohidrat, 900 IU vitamin A, 7 mg tiamin, r mg riboflavin, 2 mg niacin, 5 mg vitamin C, 0,04 mg vitamin B, 6 mg kalsium, 3 mg zat besi, 10 mg fosfor dan 130 mg potasium./cr1/itz
sumber :http://republika.co.id/berita/34351/Lawan_Kanker_Hati_Dengan_Kulit_Apel

What Can Evolution Teach us About the Human Diet?

Vegetarians deserve our respect. They're usually thoughtful, conscientious people who make sacrifices for environmental and ethical reasons. I was vegetarian for a while myself, and I have no regrets about it.

Vegetarianism and especially veganism can get pretty ideological sometimes. People who have strong beliefs like to think that their belief system is best for all aspects of their lives and the world, not just some aspects of it. Many vegetarians believe their way of eating is healthier than omnivory. One of the classic arguments for vegetarianism goes something like this: our closest living relatives, chimpanzees and bonobos, are mostly vegetarian, therefore that's the diet to which we're adapted as well. Here's the problem with that argument:

Where are chimps (Pan troglodytes) on this chart? They aren't on it, for two related reasons: they aren't in the genus Homo, and they diverged from us 5-7 million years ago. Homo erectus diverged from our lineage about 1.5 million years ago. I don't know if you've ever seen a Homo erectus skull, but 1.5 million years is clearly enough time to do some evolving. Homo erectus  ate animals as a significant portion of its diet.

If you look at the chart above, Homo rhodesiensis (often considered a variant of Homo heidelbergensis) is our closest ancestor, and our point of divergence with neanderthals (Homo neanderthalensis). Some archaeologists believe H. heidelbergensis was the same species as modern Homo sapiens. I haven't been able to find any direct evidence of the diet of H. heidelbergensis from bone isotope ratios, but the indirect evidence indicates that they were capable hunters who probably got a substantial proportion of their calories from meat. In Europe, they hunted now-extinct megafauna such as wooly rhinos. These things make modern cows look like chicken nuggets.

H. heidelbergensis was a skilled hunter and very athletic. They were top predators in their ecosystems, judged by the fact that they took their time with carcasses, butchering them thoroughly and extracting marrow from bones. No predator or scavenger was capable of driving them away from a kill.

Our closest recent relative was Homo neanderthalensis, the neanderthal. They died out around 30,000 years ago. There have been several good studies on the isotope ratios of neanderthal bones, all indicating that neanderthals obtained most of their protein from meat. They relied both on land and marine animals, depending on what was available. Needless to say, neanderthals are much more closely related to humans than chimpanzees, having diverged from us less than 500,000 years ago. That's less than one-tenth the time between humans and chimpanzees.

I don't think this means humans are built to be carnivores, particularly since there is accumulating evidence of diverse plant consumption by neanderthals, but it certainly blows away the argument that we're built to be vegetarians. Historical human hunter-gatherers had very diverse diets, but on average were meat-heavy omnivores.