Artificial Sweeteners – Are They Worse Than Sugar?

Over the past few weeks, we have had a few comments enquiring about artificial sweeteners. Since they aren’t “real” sugar molecules, do they have the same effect on blood glucose and glycation as standard table sugar? The short answer is… YES!

These include increased glycation in the body, lessened brain function in growing children and its effect on insulin levels. We have also touched on the different types of sugar, as well as how to look out for hidden sugars while you do your weekly grocery shopping.

Over the past few weeks, we have had a few comments enquiring about artificial sweeteners.  Since they aren’t “real” sugar molecules, do they have the same effect on blood glucose and glycation as standard table sugar?

The short answer is… YES!

If you think that artificially sweetened drinks are only flavoured water, but without the calories, think again. A Washington University School of Medicine study has found that sucralose (a popular artificial sweetener) when taken with some glucose* caused an enhanced blood insulin and glucose response, compared to those who simply drank water with the glucose. (*Glucose in this study is used to represent carbohydrates from different food groups)

Artificial sweeteners (while they don’t have the same calorie count) do cause glycation, just as sugar does. They are worse than real sugar as even though they don’t have the calories, they generate responses in your body that set up the expectation of calories, triggering cravings which may make you eat more. This is known as calories dysregulation – your body loses its ability to calibrate the degree of sweetness in food with the amount of calories you are consuming which sets you up to overeat.

Despite what some sweetener manufacturer’s claim, artificial sweeteners are no better than sugar.

In fact, a troubling number of studies have shown that artificial sweeteners are be much worse

New research has suggested that artificial sweeteners may also mess with the natural bacteria levels in your digestive system – reducing the amount of good bacteria and increasing intestinal pH levels. This imbalance as a result may lead to widespread negative health consequences, including increasing glucose intolerance – a sign that the body is doing a worse job of processing sugar.

So at this point, you’re pulling your hair out – I have to watch my levels of sugar AND I can’t opt for other sweeteners?

Not quite. The emphasis here is on ARTIFICIAL sweeteners. There are plenty of naturally sourced sweeteners such as Stevia, which we will be covering more in a later blog this week.

Another point I would like to re-emphasise is (I know I have repeated myself on this one!)… Go for sweeteners in forms nature intended! This means that yes, we can get into a big debate on the dangers of too much fruit, but you know what? Sugar from fruit is much better for you than artificial sweeteners. The trick is to have it in its naturally occurring form – with the fiber! Honey is another great option – don’t go for honey flavoured syrup, check the labelling and make sure what you are purchasing is pure unadulterated honey. Try out coconut sugar – I have mentioned this before. It is brown in colour which doesn’t look that pleasant, but it means it hasn’t been bleached or refined, and still has its nutritional content intact.

What other questions do you have on artificial sweeteners? I would love to clear up any myths or misconceived theories. Leave them in the comments section below.

In good health.


  1. Virgin JJ. The Sugar Impact Diet. 2014
  2. In a small study, researchers analysed the sweetener sucralose:
  3. ‘Nature’ article on artificial sweeteners inducing glucose intolerance by altering gut microbiota:
  4. Read more about fake sweeteners and their effect on sugar metabolism here:

6 Responses

Hi Dan,

Stevia is considered a natural sweetener because it is derived from the sweet glycosides of the leaves of the stevia plant, unlike sucralose, saccharin, and aspartame, which are man-made chemicals "discovered’ by accident during unrelated research in a lab.

However, in saying this, stevia is not 100% natural as some processing is needed to turn it into a powdered state. If you did want it fully in its natural form, you could simply add a stevia leaf to your hot tea.

You can read more about stevia and other sweeteners in my recent blog "<a href= >A Closer Look at Common Sweeteners".

In good health,


Customer Relations March 17 2015


Would you put xyltol from corn cobs in the artificial sweeteners category?

Thank you,



Rebecca Joseph March 13 2015

Is Stevia in the artificial category?

Dan March 17 2015

Are sugar free gum good or bad? Knowing that they contain artificial sweeteners, how much should I chew I a day?

Davena Booker March 22 2015

Hi Rebecca,

Xylitol is a sugar alcohol found in many plants and fruits, so you could say it is derived from natural sources.

However, I personally am not a fan as it is produced by the industrialized process of sugar hydrogenation. In order to hydrogenate anything, a catalyst is needed and most manufacturers use powdered nickel-aluminium alloy.

It can also cause laxative or digestive concerns in larger quantities and is harmful for dogs – so I would advise caution with this one!

In good health,


Customer Relations March 17 2015

Hi Davena,

Artifically sweetened chewing gum, in my opinion, isn’t the best thing and I wouldn’t recommend it, especially if it is taken regularly.

Having some chewing gum with you can be helpful for freshening the breath in certain situations – perhaps after a garlic roll or some red onion salad!  However, it should not be needed daily.

If you are experiencing regular bad breath, it may be an indicator that your digestive system is not as healthy as it should be.  We have a great product called <a href= >Kiwi-Klenz for this, which is great for reducing bad breath and supporting digestive health.

If you would like further support with this, please feel free to email our customer service team at

In good health,


Customer Relations March 24 2015

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