This in turn boosts levels of coagulability – the tendency of blood to clot.
Grapefruit juice is broken down only very slowly, which means that it has a cumulative effect if taken daily.
Thus, on the third day of her diet, the patient’s oestrogen levels would have been many times above normal, helping the clot to form.
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However, it’s important to keep a sense of perspective. Commenting on the findings at the time, Doctor Trevor Baglin, Consultant Haematologist, Addenbrooke’s NHS Trust, said: “From this case study it appears as if the grapefruit enhanced the thrombotic effect of the contraceptive pill in the presence of a genetic predisposition.”
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Source: Daily Express
