http___metro-portal.hr_je-li-secer-zaista-toksican_60165_1.xml
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Found via Simoleon Sense. On May 26, 2009, Robert Lustig gave a lecture called “Sugar: The Bitter Truth,” which was posted on YouTube the following July. Since then, it has been viewed well over 800,000 times, gaining new viewers at a rate of about 50,000 per month, fairly remarkable numbers for a 90-minute discussion of the nuances of fructose biochemistry and human physiology. Lustig is a specialist on pediatric hormone disorders and the leading expert in childhood obesity at the University of California, San Francisco, School of Medicine, which is one of the best medical schools in the country. He published his first paper on childhood obesity a dozen years ago, and he has been treating patients and doing research on the disorder ever since. The viral success of his lecture, though, has little to do with Lustig’s impressive credentials and far more with the persuasive case he makes that sugar is a “toxin” or a “poison,” terms he uses together 13 times through the course of the lecture, in addition to the five references to sugar as merely “evil.” And by “sugar,” Lustig means not only the white granulated stuff that we put in coffee and sprinkle on cereal — technically known as sucrose — but also high-fructose corn syrup, which has already become without Lustig’s help what he calls “the most demonized additive known to man.” It doesn’t hurt Lustig’s cause that he is a compelling public speaker. His critics argue that what makes him compelling is his practice of taking suggestive evidence and insisting that it’s incontrovertible. Lustig certainly doesn’t dabble in shades of gray. Sugar is not just an empty calorie, he says; its effect on us is much more insidious. “It’s not about the calories,” he says. “It has nothing to do with the calories. It’s a poison by itself.” If Lustig is right, then our excessive consumption of sugar is the primary reason that the numbers of obese and diabetic Americans have skyrocketed in the past 30 years. But his argument implies more than that. If Lustig is right, it would mean that sugar is also the likely dietary cause of several other chronic ailments widely considered to be diseases of Western lifestyles — heart disease, hypertension and many common cancers among them. The number of viewers Lustig has attracted suggests that people are paying attention to his argument. When I set out to interview public health authorities and researchers for this article, they would often initiate the interview with some variation of the comment “surely you’ve spoken to Robert Lustig,” not because Lustig has done any of the key research on sugar himself, which he hasn’t, but because he’s willing to insist publicly and unambiguously, when most researchers are not, that sugar is a toxic substance that people abuse. In Lustig’s view, sugar should be thought of, like cigarettes and alcohol, as something that’s killing us. This brings us to the salient question: Can sugar possibly be as bad as Lustig says it is? ……….…….. Related link: Sugar: The Bitter Truth Related previous posts: Gary Taubes Interview with Jimmy Moore
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Je li šećer zaista toksičan Rafinirani šećer i visokofruktozni kukuruzni sirup najgori su aditivi poznati čovjeku, smatra Robert Lustig Svi smo mi manje-više kao djeca odrastali na šećeru - svatko s sjeća radosti kad bi nam roditelji ili bake i djedovi donijeli čokoladu ili nas vodili na sladoled. Iako znamo da šećer sam po sebi nije zdrav, naročito u velikim količinama jer je poprilično obrađen, nikada ustvari ne razmišljamo do koje mjere nam šteti. U posljednje vrijeme stručnjaci ga povezuju s trovanjem našeg tijela, a evo i zašto: Video (ispod) nazvan „Sugar - the Bitter Truth ('Šećer - gorka istina'), u kojem govori Robert Lustig, stručnjak za pedijatrijske hormonalne poremećaje, pregledan je preko 1,4 milijuna puta. To je zapanjujuća brojka kad se uzme u obzir da video traje 90 minuta i da se u njemu govori o problematici biokemijske fruktoze i ljudske fiziologije. On je riječ 'otrov' ili 'toksin' u videu upotrijebio najmanje 13 puta opisavši šećer u pet navrata kao 'zlo'. Kad kaže 'šećer' Lustig ne misli samo na kristalne granule koje dodajete u kavu i čaj već i na visokofruktozni kukuruzni sirup kojega ovaj stručnjak naziva „najvećim demonizirajućim aditivom koji je poznat čovjeku". Ako je Lustig u pravu, to znači da je šećer vjerojatni uzrok niza kroničnih boljki koje se tipično smatraju bolestima zapadnjačkog svijeta - srčani problemi, hipertenzija, tumori... Nutricionisti će vam savjetovati da izbjegavate masnoće, smanjite unos soli i šećera i da naglasak stavite na svježe voće i povrće - to je već toliko izlizan savjet, ali i dalje vrijedi. Međutim, tvrdnja da je šećer zaista tako štetan mnogima se neće dopasti. I to nas dovodi do konkretnog pitanja - je li šećer toksičan kao što to Lustig kaže? Odgovor je po svemu sudeći potvrdan - šećer i visokofruktozni sirup jesu štetni - zbog načina na koji ih naš metabolizam obrađuje, ali i količine koju konzumiramo, u našim se jetrima nakupljaju masnoće iza čega slijedi sindrom otpornosti na inzulin. Ovo pak pokreće procese koji vode do srčanih tegoba, dijabetesa i pretilosti. Šećer i sirup zaista mogu biti toksični, ali za to je potrebno određeno vrijeme i konzumacija u velikim količinama. Šećer ne čini štetu preko noći. Dok ne dobijemo rezultat dugoročnih istraživanja koja su u tijeku nećemo biti u potpunosti sigurni to kako i koliko je zapravo šećer štetan i toksičan. U tom smislu, šećer može biti još opasniji od onoga kakvim ga Lustig predstavlja. Kakva god istina bila, svima je jasno da nam više šteti nego koristi pa je u svakom slučaju najbolje ne pretjerivati s njegovom konzumacijom, naročito u obrađenom i rafiniranom tvorničkom obliku. Bolje je jesti voće.