
22/10/2021
The Alkaline diet suggests that eating foods which are ‘alkaline forming’ (e.g. fruits, veggies, soybeans and some legumes) rather than ‘acid forming’ (e.g. meat, grains, dairy, alcohol) can improve our bone health, metabolic health and even fight cancer! 😱
The hypothesis:
The theory behind this diet is that you can change your body's natural pH levels, through what you eat, reducing the acidity level. It has been suggested that a higher acid level removes calcium from the bones, reducing density and provides an optimal environment in which cancer cells can thrive.
The evidence:
❎ Unfortunately there is NO EVIDENCE to support the above in humans.
Your body's pH levels are designed to be acidic or alkaline in certain areas and this is tightly controlled, despite what you eat. For example your stomach is naturally acidic, this is important to help you break down and digest food, as well as to kill potential pathogens which may enter your system. If your stomach was not naturally acidic you could be more susceptible to illness as well as conditions such as SIBO.
Food can affect the pH of your urine, so those (unncessarily) following an alkaline diet may use this as a monitoring method, however it does not give us an indicator of your body's acidity levels or general health, and can be influenced by other factors outside of diet.
Nothing we eat will change the pH of our blood. If our blood pH was outside of the normal it can be fatal! ☠️ Your liver and kidneys do the job of excreting toxins from your body, and they don’t tend to need any help to do so.
Take-home:
Ditch the supplements, alkaline water and ionisers, and consider un-following any “influencers” who are spreading harmful messages about following an alkaline diet to treat medical conditions, because it just isn’t supported by any good clinical evidence. It certainly isn’t a cancer treatment, and there are significant risks related to this diet. As always, a healthy balanced diet with food from all the food groups and plenty of plants is the safest and most beneficial!