Numerous claims have been made that dietary supplements can help to manage blood sugar levels and the complications of diabetes. Some studies have supported the potential benefits of supplements to help manage diabetes, and in other areas there is more research needed to better understand their effects"? Or “Some studies have supported the potential benefits of supplements to help manage diabetes. More research is needed in other areas to better understand their effects.
Your healthcare provider can help you weigh the risks and benefits of these supplements for your overall health.
Cinnamon
Cinnamon is a spice made from the inner bark of a type of tree known as Cinnamomum.
It is mainly now used to add flavor to food or aroma in scented products, but it has been used throughout history as a natural medicine.
Benefits
Cinnamon may help to:
Lower blood sugar levels in people with diabetesLower the blood sugar in people with prediabetesSlow the progression to diabetes
Better blood sugar control could also help prevent the complications of uncontrolled diabetes.
What the Research Says
Research about the benefits of cinnamon on diabetes is mixed.
Some analyses have found no improvements in blood sugar control for people with diabetes. There have also been studies that show a modest improvement in both fasting blood glucose level and hemoglobin A1C tests while using cinnamon supplements.
How to Take
Most of the research studies used doses ranging from 1 to 6 grams of cinnamon per day.
One of the best ways to add cinnamon to your diet is by adding powdered cinnamon to your food or drinks. You can sprinkle it on:
SmoothiesOatmealTea
There are 2 to 3 grams in 1 teaspoon of cinnamon.
Side Effects and Warnings
Cinnamon can enhance the effectiveness of medication for diabetes and heart disease.
In small amounts, it can be safe to take, but be sure to discuss with your healthcare provider before changing the amount of cinnamon you have in your diet.
Some forms of cinnamon contain the compound coumarin, which can worsen liver function in people who have liver disease.
Omega-3s
Omega-3 fatty acids are a type of polyunsaturated fat that is found in foods like fish, walnuts, and flaxseed.
Benefits
There are claims that omega-3 fatty acids help to reduce inflammation in the body, and some research supports that these types of fatty acids can help reduce the risk of heart disease.
There are also some claims that it can help to prevent diabetes and the complications of uncontrolled blood sugar because of the reduction of inflammation and damage done to the cells.
What the Research Says
Research doesn’t support that omega-3 supplements can help to lower blood sugar levels, and one study found that high doses of omega-3s could worsen control over blood sugar.
Another study reported mixed findings on the impact of omega-3s on the development of type 2 diabetes. Some of the studies in the analysis reported an increased risk, while other studies showed a decreased risk for developing diabetes in people taking omega-3 supplements.
How to Take
Omega-3 supplements typically come in the form of pills and are best taken with meals to increase their absorption.
Side Effects and Warnings
Taking an omega-3 supplement can lead to side effects like:
Bad breathIndigestionDiarrhea
It can also interact with medicines that affect blood clotting.
Selenium
Selenium is a trace mineral, which means we only need very small amounts of it to meet our needs.
It is naturally present in soil and can be found in both food and water. The amount will vary based on the area the water and food come from.
Benefits
It acts as an antioxidant in the body, protecting cells from damage. It also plays a role in metabolism and the health of the thyroid.
What the Research Says
There is no evidence that selenium supplements reduced the risk of type 2 diabetes.
One study even found an association between high serum selenium levels with the development of diabetes.
How to Take
Selenium is available in tablet forms, and the recommended daily allowance is 55 micrograms.
Side Effects and Warnings
High doses can lead to toxicity. The symptoms of selenium toxicity include:
NauseaVomitingBrittle nailsFatigueIrritability
Chromium
Chromium is a trace mineral that is found in many different foods.
It’s rare to have a chromium deficiency, but if there is too little in the diet it can affect blood sugar control.
Benefits
Chromium helps insulin to function more efficiently and is used in glucose breakdown.
Chromium could help maintain better blood sugar levels and improve insulin resistance.
What the Research Says
There is some supportive evidence that the risk of getting type 2 diabetes was lower in people who took chromium supplements.
There is still not enough research to fully understand this relationship.
Research suggests that the added benefits of chromium supplements are only effective if there isn’t enough chromium in the diet.
How to Take
Recommended doses of chromium range from 200 to 1,000 micrograms per day; the recommended adequate intake for it is about 35 micrograms per day.
It is most often taken in pill form.
Side Effects and Warnings
When taken in large doses, chromium supplements cause:
Stomach painBloatingSkin reactions
There is minimal research into the effects of long-term chromium supplement use, so it should be used with caution since it is also found in many foods.
Alpha-Lipoic Acid
Alpha-lipoic acid is an antioxidant found in:
YeastLiverKidneySpinachBroccoliPotatoes
It is also made by the body and is used in every cell.
Benefits
Antioxidants protect the cells from damage by stabilizing free radicals before they can cause damage to cells.
Alpha-lipoic acid can be especially helpful to protect from damage to the nerves and eyes that can be a complication of diabetes.
What the Research Says
Research supports that Alpha-lipoic acid supplements can help to protect from diabetic neuropathy (nerve damage) and diabetic retinopathy, which is a progressive condition in the eyes that can lead to blindness if blood sugar levels remain uncontrolled.
How to Take
There are limited guidelines for dosing for Alpha-lipoic acid. It is generally sold in 100- to 600-milligram pills.
Side Effects and Warnings
High doses of Alpha-lipoic acid could cause:
Digestive issuesSkin rashMuscle crampsHeadaches
Magnesium
Magnesium is a mineral found in foods like:
Bran cerealsNutsSeedsSpinach
In the body, magnesium helps with muscle and nerve function as well as blood glucose and blood pressure control.
Benefits
Adequate magnesium intake may help to reduce the risk of developing diabetes and help with better blood sugar control.
What the Research Says
Studies support that there is a relationship between magnesium deficiency and the risk for developing type 2 diabetes.
There are some benefits of magnesium supplements shown in helping diabetic patients, but the research is limited and the studies are still too small to truly understand its effects.
How to Take
The recommended intake for magnesium can vary by age, but for adults, the range is typically between 300 to 400 milligrams per day—including both food and supplement sources.
Side Effects and Warnings
Excessive magnesium intake can cause abdominal symptoms like diarrhea and cramping.
Vitamin B-1
Thiamine—also known as vitamin B-1—helps the body to use carbohydrates for energy. It is also important for muscle contraction and helps nerves to communicate.
Benefits
Thiamine may help with blood glucose control and preventing the complications of uncontrolled diabetes, like nerve damage in the arms and legs.
What the Research Says
There is a small amount of research to support that thiamine can help to protect from the complications of diabetes.
How to Take
It can be taken in a pill with just thiamine or as part of a mixed vitamin like a multi-vitamin or B-complex.
Side Effects and Warnings
There are typically no side effects of having a large amount of thiamine because it is a water-soluble vitamin, and the excess can be excreted through urine.
American Ginseng
Ginseng is an herb used in traditional Chinese medicine, and American ginseng is a type that grows primarily in North America.
Benefits
American ginseng is said to help:
Reduce stressStrengthen the immune systemIncrease energyTreat diabetes
What the Research Says
Some research supports that American ginseng can help to reduce blood glucose levels in type 2 diabetes, but these studies are limited by small sample sizes and short study lengths.
How to Take
It is available in pills or concentrated drops that can be mixed with water.
Side Effects and Warnings
American ginseng may interact with medications, and it affects multiple parts of the body.
It should be used with caution and could affect blood clotting.
Probiotics
Probiotics are live bacteria that are beneficial for your health.
Numerous types of bacteria and yeast live within the human body and digestive tract, some good and some harmful for your health. Probiotics are good bacteria that help to protect your health, especially for the gut.
Benefits
Probiotics help with:
Gut healthBowel regularityPreventing yeast infections
It’s possible probiotics can also help with glucose metabolism.
What the Research Says
An analysis of research studies suggested that consuming probiotics may help improve glucose metabolism and help with diabetes.
How to Take
Probiotics can be taken in capsule form or consumed in foods.
Food sources of probiotics include:
KefirYogurtKombuchaSauerkraut
Side Effects and Warnings
Most people can take probiotics without any side effects, but there is the chance of:
Some digestive issuesHeadachesAllergic reaction
Aloe Vera
Aloe vera is best known for its gel form that is used on the skin to treat sunburns. It can also be used in juices or supplements.
Benefits
Aloe vera may help to improve blood glucose control and has been suggested to help treat people with diabetes.
What the Research Says
Current evidence suggests there is a potential benefit of using aloe vera to improve glycemic control in prediabetes and type 2 diabetes.
The research is limited by small sample sizes and lower-quality studies.
How to Take
To help with diabetes, aloe vera juice can be consumed.
There are no official recommendations for the dose because of the limited research.
Side Effects and Warnings
The research about the effects of aloe vera is still limited, and you should use caution before taking it. It could interact with medications you are taking, changing their effectiveness.
Berberine
Berberine is a chemical found in multiple plants, including:
Tree turmericOregon grapeGoldenseal
Benefits
Berberine could help lower:
CholesterolBlood pressureBlood sugar levels
It can even be as effective as some drugs.
What the Research Says
Research supports that berberine can significantly help to lower blood glucose levels and help with lipid metabolism.
How to Take
It can be taken by mouth, and the typical doses are between 0.6 to 1.5 grams split up throughout the day.
Side Effects and Warnings
Berberine should not be taken with other diabetes medications because it could lead to dangerously low blood sugar levels.
Berberine supplements can also cause diarrhea, constipation, bloating, gas, and headaches.
Gymnema
Gymnema is a medicinal plant that has been used in traditional medicine. It has antioxidant and antimicrobial properties that can be beneficial to health.
Benefits
It could help with reducing cravings for sweets, and there are claims it helps reduce obesity.
The powerful antioxidant effects could help to protect from diabetes complications.
What the Research Says
There is some research to support the benefits of Gymnema.
It could help with reducing weight, which can help with the sensitivity to insulin.
Also, its ability to suppress sweet taste could help reduce sugar intake. There is still more research needed to fully understand the impact of Gymnema on diabetes.
How to Take
Gymnema can be consumed as a:
PillPowderDrink
Side Effects and Warnings
Gymnema can cause side effects such as:
HeadacheNauseaDizzinessLow blood sugar levels
Because Gymnema can interact with diabetes, talk with your healthcare provider before taking it.
A Word From Verywell
Always talk with your healthcare provider before starting a new supplement, and follow their advice. There is limited research for most of these supplements, and they can have a big impact on your health.
Most of these supplements can also be found in foods. Eating a balanced diet to prevent nutrient deficiencies is important, and nutrition also helps with managing blood sugar levels.
More research is needed to fully understand the effects these supplements have on diabetes and your overall health. Use caution before starting supplements to learn how they can affect your health and any medications you are taking.
