Má notícia para o vinagre de maçã: estudo é retratado

Má notícia para o vinagre de maçã: um estudo que apontava benefícios contra a obesidade foi retratado ("despublicado") pela revista científica.

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O ensaio clínico, feito no Líbano com 120 voluntários, indicava que o consumo do vinagre levava a perda de peso, redução de gordura e melhora de glicose e colesterol.

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O artigo foi publicado em março de 2024 na revista BMJ Nutrition, Prevention & Health e ganhou repercussão imediata.

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Apesar de pequeno, o estudo tinha desenho rigoroso: era randomizado, controlado por placebo e duplo-cego.

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Logo após a publicação, outros pesquisadores criticaram a metodologia estatística e apontaram inconsistências nos dados apresentados.

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Também houve críticas porque o ensaio clínico não estava devidamente registrado em órgãos reguladores.

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Agora, uma análise independente identificou erros graves na divulgação e falhas que impediam a reprodução dos resultados.

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Diante disso, a revista decidiu despublicar o estudo e alertou que ele não deve ser mais usado como referência científica.

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Os autores aceitaram a retratação, alegando erros não-intencionais — mas descartaram qualquer má-fé na condução do estudo.

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