Tagatose vs. Classic Sugars

These are the main differences between tagatose and the classic sugars that you find in most processed foods, restaurants and home kitchens.



  • Tagatose helps lower HbA1c blood glucose marker indicative of reduced sugar damages.
  • Tagatose has a very low glycaemic index, which helps regulate blood sugar levels.
  • Tagatose provides a slow and steady release of energy, which can help prevent blood sugar spikes and crashes.
  • Studies suggest that tagatose may help improve lipid profiles by reducing LDL cholesterol and triglycerides.
  • Tagatose provides a source of energy that does not require insulin, which may help support brain health
  • Tagatose has been shown to help improve exercise performance by increasing endurance and reducing fatigue.
  • Tagatose has been shown to have anti-cariogenic properties, which may help prevent tooth decay. Approved by EFSA as safer for teeth.
  • Studies suggest that tagatose may help promote weight loss by reducing calorie intake and increasing fat burning.

Classic Sugar

  • Sticks to red blood cells (impairing the haemoglobin that is critical for oxygen transport) and elevates HbA1c.

  • High GI – increases nutrigenomic risk (food/gene interaction) of developing Type 2 Diabetes.

  • Rapid energy which crashes, causing hunger and lethargy (tiredness and mental fog).

  • Increases production of cholesterol by the liver in response to inflammation.

  • Reduces focus, induces anxiety, impairs memory, reduces BDNF (a neurotransmitter involved in learning), and increases oxidative stress (creating brain inflammation and brain fog).

  • Encourages fermentation by-products impairing muscle function and increasing inflammation.

  • Feeds bad bacteria that cause bad breath, plaque, and demineralize teeth.

  • Promotes fat storage and restricts metabolic access to using fat for fuel.

How can I use tagatose?

Tagatose has a taste similar to table sugar but is slightly less sweet.

It works well in a variety of foods and beverages, including baked goods, yogurt, smoothies, and coffee.

tea and coffee

Your Personal Sugar Strategy

One of the challenges when replacing classic sugars, with Dr Coy’s healthy sugars, is that they have different properties:

  • Some are great for baking, others are better for ice-cream. 
  • Some taste super sweet, others much less so.
  • Some have the same calories as classic sugars, others have less.

Also, we each have different needs when it comes to energy, and preferred levels of sweetness:

  • An athlete needs more energy than an office worker.
  • Some people prefer sweeter tastes.
  • Weight loss and diabetes also have unique metabolic needs.

So, to make it easier, Dr. Coy developed sugar mixtures based on personal and functional needs.