Winehouse was found dead in bed at her flat in Camden, north London, on the afternoon of Saturday July 23, 2011.
St Pancras coroner Dr Shirley Radcliffe said the star died from "alcohol toxicity", adding that it was "a level of alcohol commonly associated with fatality".
She said Winehouse "voluntarily consumed alcohol" and added that "two empty vodka bottles were on the floor" beside her bed when her body was discovered.
In a written statement, Winehouse's GP, Dr Christina Romete, said: "She was genuinely unwilling to follow the advice of doctors, being someone who wanted to do things her own way."
Dr Romete saw Winehouse the night before she died.
Although the singer had been drinking, the GP said: "She specifically said she did not want to die."
The doctor's statement also revealed Winehouse's struggle with an eating disorder - which she spoke about shortly before her death.
"I visited Amy at home on 16 May and for the first time she admitted she made herself sick following food binges," Dr Romete said in her statement.
In a written statement, Winehouse's live-in security guard Andrew Morris said he and the star had over time "developed a brother/sister relationship".
Speaking about the moment he realised she was dead, he said: "I was upset and shaken. She's like a sister to me."
Detective Inspector Les Newman, who gave evidence in person, confirmed there were "no suspicious circumstances" in the singer's death.
Professor Michael Sheaff, a colleague of Suhail Baithun who carried out the post-mortem examination, also gave evidence in person and said: "Mr Baithun established the cause of death as alcohol toxicity."
He added: "It is likely Miss Winehouse had a respiratory arrest."
- PAA
