Do you need to take natural supplements for diabetes? Let’s take a look at the available options.
Supplements for diabetes
We all know that a healthy diet is key to managing your diabetes. But should you also be taking a diabetic supplement?
Like many other people with diabetes, you may be wondering whether you need to take supplements to help manage your condition. Dietary supplements can be vitamins, minerals, herbs or other plants, amino acids (the building blocks of protein) or a combination of the above. They can be in pill, capsule, powder or liquid form.
Despite some of the claims being made, there is not enough scientific evidence to suggest that any dietary supplements can help prevent or manage Type 2 diabetes. That said, dietary supplements may provide extra nutritional benefit to people with special health problems, including diabetes. In such cases, they are usually recommended when there is a specific lack of something in the body.
Living with diabetes can be challenging, so when you hear about a natural supplement that works wonders, it’s easy to get excited.
“A number of supplements have been said to play a role in improving insulin sensitivity, blood sugar control, and helping to prevent complications of diabetes.
Prof Joel Dave, endocrinologist
Although there is some observational evidence to suggest that some of these may be beneficial, unfortunately there are no large, long-term, placebo-controlled studies that prove any supplement is effective when it comes to diabetes.”
Dietician Cheryl Meyer agrees: “In some cases benefits have been shown, but at this stage there is just not enough scientific evidence.” Both experts believe that a well balanced diet should provide all the essential minerals and vitamins you need.
“I don’t recommend routine supplementation,” says Dr Dave, “but if someone is deficient in a specific vitamin or mineral, then I would recommend they take a supplement of that particular vitamin or mineral.”
Do: Eat correctly
It’s important to try and get the nutrition your body needs from a balanced diet. Making healthy food choices and choosing fruit, vegetables and whole grains over carbohydrates, refined sugars and foods high in saturated fats can make a big difference. Compared with supplements, whole foods provide a variety of different nutrients for health in one package, whereas single vitamin supplements are most often for a single purpose. An apple, for example, contains vitamin C, fibre, and antioxidants – all in one crunchy package!
Dr Claudine Lee, a GP from Hilton, says that following a balanced and healthy diet is essential. “If you think you’re not getting the vitamins and minerals you need from your diet, consult with your GP whether it is necessary to take a supplement,” she advises. Eating correctly, being physically active and taking your prescribed medication is vital for maintaining good control of blood sugar levels to avoid serious complications like strokes, heart and kidney disease, limb amputation and blindness.
Don’t: Go it alone
Talk with your doctor. That is the first step in deciding whether or not to use a dietary supplement. He or she can discuss the possible benefits of dietary supplements, and check that any supplements you take will not interact dangerously with your medications.
Be sure to list any dietary supplements you take whenever you tell your doctor or any other healthcare professional about your medications. Most importantly, keep in mind that a dietary supplement is not a replacement for the diabetes treatment and care advised by your doctor.
So, do diabetics need supplements?
The following people could benefit from supplements:
- Those on low calorie diets, who do not eat a variety of foods.
- Those following vegan diets.
- Those with certain food allergies, kidney disease or diseases of the gastrointestinal tract that interfere with nutrient digestion or absorption.
- Pregnant women.
When a supplement may be necessary
If you are experiencing specific symptoms and suspect you are deficient in a vitamin or mineral, speak to your doctor about having a blood test. Your doctor will make a recommendation based on the test results and may prescribe a supplement. Keep in mind that the type and dosage your doctor prescribes may be different from what is found on the shelf. Stick to your prescription rather than self-medicating.
Be careful of drug interactions
Dietary supplements can have adverse interactions with prescription drugs, other herbal products or over-the-counter medications, warns Meyer. The effects range from mild to potentially life-threatening, so it is important to disclose everything you are taking to your doctor.
Never replace your conventional prescription
“Don’t replace a proven conventional medical treatment for diabetes with an unproven health product or practice. The consequences can be very serious,” says Meyer.
“I generally advise my patients to steer clear of supplements unless we know for sure that it’s necessary,” says Dr Dave. “Rather focus on sticking to a healthy diet and lifestyle, monitoring your blood glucose and taking the medication your doctor has prescribed.”

Supplements and their claimed benefits
Amino Acids/Protein
Carnitine (L-carnitine), a nutrient made from amino acids that helps the body turn fat into energy, has been found to be deficient in people with diabetes. Almonds, egg and cottage cheese are rich in this nutrient.
Antioxidants
Antioxidants can help reduce oxidative stress and lower the risk of diabetic complications. Choose brightly coloured fruits and vegetables in smoothies, salads and soups to ensure a variety of antioxidants.
Enzymes
Digestive enzymes help ensure that mineral uptake is strong and can aid the management of diabetes. Pre- and probiotics are also helpful to maintain digestion and immunity.
Lipids and essential fatty acids
Omega-3 fatty acids lower blood pressure and triglyceride levels, and can help to relieve many of the complications associated with diabetes.
Minerals
Magnesium, common in leafy green vegetables, is frequently lacking in people with Type 2 diabetes, as is chromium. Brewers yeast, mushrooms and non-refined grains all contain chromium. Zinc improves insulin function, and potassium (found in all fruits and vegetables), can improve insulin sensitivity.
Vitamins
A vitamin B complex improves the metabolism of glucose, and vitamins C and E can improve eye health.
Alpha-lipoic acid
Alpha-lipoic acid (ALA) is an antioxidant made by the body. It is found in every cell, where it helps turn glucose into energy. Several studies suggest ALA helps lower blood sugar levels. Its ability to kill free radicals may also help people with nerve damage, which is a common diabetes complication. For years, ALA has been used to treat diabetes-related nerve damange in Germany. However, most of the studies that found it helps were based on using intravenous ALA. It is not clear whether taking it orally will have the same effect.
Source: University of Maryland Medical Centre
Chromium
Chromium is an essential mineral that plays a role in how insulin helps the body regulate blood sugar levels. For many years, researchers have studied the effects of chromium supplements on those with Type 2 diabetes. While some clinical studies found no benefit, others reported that chromium supplements may reduce blood sugar levels, as well as the amount of insulin people with diabetes need. Good food sources of chromium include whole grain breads and cereals, lean meats, cheese, some spices (like black pepper and thyme), and brewer’s yeast.
Source: University of Maryland Medical Centre
Fenugreek
Fenugreek seeds may be helpful to people with diabetes because they contain fibre and other chemicals that are thought to slow digestion and the body’s absorption of carbohydrates and sugar. The seeds may also improve the way the body uses sugar and increase the amount of insulin released. An Iranian study found that a daily dose of fenugreek seeds soaked in hot water may be helpful in controlling Type 2 diabetes. Another study from the US suggests that eating baked goods, such as bread, made with fenugreek flour may help to reduce insulin resistance in people with Type 2 diabetes.
Source: Healthline
American ginseng
Several studies have shown that American ginseng lowered blood sugar levels in people with Type 2 diabetes. The effect was seen both on fasting blood sugar and on glucose levels after eating. One study found that people with Type 2 diabetes who took American ginseng before or together with a high sugar drink experienced less of an increase in blood glucose levels.
Source: Penn State Milton S. Hershey Medical Center
Magnesium
Magnesium deficiency has been associated with increased risk of Type 2 diabetes. Some studies suggest that supplementing may be beneficial, but other studies have shown no benefit. A healthy diet should provide all the magnesium you need, so have your doctor check for deficiency before you consider supplementing. Good food sources of magnesium include legumes, whole grains, broccoli, green leafy vegetables, dairy products, seeds and nuts.
Source: Oregan State University and WebMD
“Some people believe that by taking a supplement they won’t need to exercise or take any medication. This is untrue. You need a balanced diet as well as exercise to help control your sugar levels. A balanced diet includes five servings of fruit and vegetables a day, a low intake of salt and fat, lean meat and complex carbohydrates found in foods such as brown rice, potatoes, beans and lentils.”
Faaiza Paruk, dietician
Do you take supplements? Let us know!
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