If the body is heavily alkalised through diet and dietary supplements, what effect does this have on cancer cells?
Based on the available medical literature, "heavy alkalisation" achieved through diet and dietary supplements cannot meaningfully alter the body's systemic or cellular microenvironmental pH; thus, it has no direct antitumour or tumour growth-inhibiting effect on cancer cells. The human body's buffer systems (such as pulmonary and renal function) strictly regulate the pH of blood and tissues within a very narrow range (7.35–7.45); diet can at most transiently modify urinary pH. Although the tumour microenvironment is frequently acidic in laboratory experiments, systemic alkalisation does not result in the death of cancer cells, and clinical databases contain no randomised clinical trials confirming the direct anticancer efficacy of the so-called alkaline diet or alkaline water in the human body.\n\nMedical reviews concerning systemic alkalisation and alkaline water point out that claims regarding disease prevention and systemic pH shifts are not supported by reliable clinical evidence; dietary interventions can only have a modest effect on urinary pH or the local gastrointestinal environment.\n\nActive clinical trial registries currently contain no studies evaluating the direct antitumour effect of an alkaline diet or alkalising dietary supplements.