All of which might be true. I
have never drunk it so cannot comment on what it tastes like. It certainly
doesn’t have sugar; instead it is sweetened by Aspartame, an artificial sweetener.
Now if you have been watching the news last week, you cannot have failed to
have seen the story from the World Health Organisation (WHO) who described aspartame
as being carcinogenic. It was an announcement akin to saying that a glass of red
wine a day protects you from a heart attack or a stroke. More of which later.
For a moment, let’s go back to aspartame.
It was first developed in the 1960’s and is said to be 200 time sweeter than
sugar. It started to be used in the 1980’s amid a growing awareness and increased
legislation over the use of sugar in food and drinks. Now the WHO have stated
that a safe daily limit of consumption of this sweetener is 40mg per kg of body
weight per day. To put that into perspective, it would mean that the average
person (which is probably worth a blog on its own) would need to visit our
store cupboard 14 times a day, take a can of diet Coke and drink it
every time.
What concerned me about last
week's WHO story was both yet another ridiculous and sensationalising public
communication over aspartame and the fact that this additive is to be found in
so many other everyday products that I didn’t know about. Here is a simple
example. Last Wednesday I took a walk from Lytham to Preston. It’s about 21 km long
and the route is largely along a coastal path. I always walk light, and prefer
to buy a bite to eat and drink along the route. It was a very hot day, I was
thirsty, and was seduced into purchasing a can of no sugar 7Up. I thought
it was a healthy choice. However, like many soft drinks, the sugar is replaced
by aspartame. The WHO recommendation is just to drink water as sweeteners in drinks
such as diet Coke, and sugar free 7Up is not the answer to helping us keep healthy.
Even if we do, as the Donald Trump, that is.
The WHO announcement was based on
work undertaken by the International Agency for Research on Cancer (IARC).
Despite the IARC researchers admitting there was limited but not convincing
evidence, they still published the warning that aspartame could cause some types
of liver cancer. The real risk appears to be for those people living with phenylketonuria
(PKU), a rare inherited condition. These folk lack an enzyme which means they
are unable to break down the amino acid, phenylalanine. Phenylalanine is the
major building block for aspartame. Those living with PKU have to abide by a
very strict low protein diet, and avoid foods where naturally occurring
phenylalanine is found. This can be particularly difficult for families bringing
up a child with PKU – take a look at Hannah’s story here. There are around 2300
people living with PKU in the UK.
So perhaps because of this
clearly defined and well known risk to a small number of the population, rightly,
there was a storm of criticism on social media. Some of which came from eminent
scientists in the field of nutrition, statistics and dietetics. The general
thrust of the criticism was over trying to use what was described as scaremongering
tactics based on limited data, to try and persuade people to change their diet
and behaviour.
This is not only not ethical, but
also confusing and somewhat disingenuous. It runs the risk of more soundly researched-based public health messaging being ignored in the future. We saw what that could lead to during the Covid-19
pandemic as people were told government decisions were following the science. And
when it became apparent that those who were taking the decisions were not
abiding by them, many people chose to ignore them as well. Once people’s trust
in the power of science is lost, it can be very difficult to regain.
*Released in 1880, the first publicly sold bottle of Coca-Cola contained around 3.5 grams of cocaine.
No comments:
Post a Comment