Health experts are drawing attention to an ordinary kitchen spice, turmeric, for its remarkable potential to help manage blood sugar levels. The spice contains an active compound called curcumin, which is described as a "powerhouse" ingredient due to its potent anti-inflammatory and antioxidant properties.

The spice was mentioned during today's (February 4) episode of the BBC talk show Morning Live. Resident doctor and health expert, Dr Oscar Duke, discussed the 'underused' spice with hosts Gethin Jones and Louise Minchin as bestselling cookbook author Maunika Gowardhan shared a turmeric scrambled egg and beans recipe.

Curcumin, found in turmeric, may help control type 2 diabetes by lowering blood sugar and HbA1c levels. Research indicates that its anti-inflammatory properties work like Metformin by enhancing insulin sensitivity and lowering markers of metabolic syndrome. Although it shouldn't replace medication, it is frequently researched as a supplementary treatment.

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Sharing the health benefits of turmeric and its active compound curcumin, Dr Oscar told viewers: "Studies have shown good properties in terms of anti-inflammatory properties. I think overall it goes into having a really healthy, balanced diet. There are some suggestions that if you have it alongside black pepper, you increase that absorption as well.

"Overall, it's delicious and very warming - especially around the time of coughs and colds. I know Dr Punam is a big fan of having a bit in her drinks as well. There are lots of potential benefits."

Another health expert, Dr Eric Berg DC, who specialises in the ketogenic diet, low-carb strategies and intermittent fasting, has also spoken of curcumin's anti-inflammatory properties. "Curcumin has anti-diabetic properties and effects similar to Metformin," he said, in one of his educational videos online.

Research suggests that curcumin may possess effects similar to Metformin, a medication commonly prescribed to manage or prevent Type 2 diabetes. Curcumin can decrease the liver’s glucose production and enhance the body’s insulin sensitivity, mirroring the way Metformin works.

It allows cells to respond more effectively to insulin, which helps the body utilise glucose more efficiently. Since Type 2 diabetes is often linked to ongoing inflammation and oxidative stress, curcumin’s anti-inflammatory benefits can help address these root issues.

Studies have indicated that curcumin may not only help manage existing diabetes by improving metabolic profiles but could also potentially delay or prevent the onset of Type 2 diabetes. Combining curcumin with Metformin has been shown in research to offer superior efficacy in improving glucose metabolism and lipid profiles.

Curcumin doesn't get absorbed well by the body when taken alone, which is called low bioavailability. To help with this, many supplements combine it with piperine, found in black pepper, or use special formulas to make it easier for the body to absorb.

Curcumin and metformin have similar health benefits, especially when it comes to treating metabolic problems like diabetes, fatty liver, and Polycystic ovary syndrome (PCOS). They both usually activate the AMP-activated protein kinase (AMPK) pathway, which helps improve how the body responds to insulin. However, curcumin is generally better at lowering oxidative stress, while metformin works more directly to lower blood sugar levels.

Beyond blood sugar, curcumin has been studied for its ability to stabilise cholesterol levels. Some research suggests it may offer benefits similar to statins, helping to reduce LDL ("bad") cholesterol and triglycerides. It has also been explored for its potential to support heart health and help prevent and treat certain types of cancer.

Initial studies indicate that curcumin may provide protective benefits for the brain and could help with issues related to ageing, such as memory loss, anxiety, and depression, by boosting levels of brain-derived neurotrophic factor (BDNF). It might also help control inflammation and soreness from exercise, leading to better recovery for those who are active.

Curcumin has also been shown to possibly aid in managing various aspects of metabolic syndrome, such as enhancing insulin sensitivity and lowering inflammatory markers.

While initial animal and human studies are promising for blood sugar management, more extensive human trials are needed to fully understand curcumin's effects on diabetes. Crucially, if you are currently taking prescribed medication for your blood sugar levels, you must continue to follow your doctor’s instructions.

If you're thinking about taking high-dose curcumin supplements, it's really important to talk to your doctor first. This is especially true if you're already taking medicine for diabetes, because it could raise the chances of having low blood sugar.

Curcumin supplements can interact with certain medications, such as blood thinners. Always consult with your GP or a healthcare professional before starting any new supplement regimen.