Blood sugar support supplements such as berberine, chromium and cinnamon, and the glucose disposal agents (GDAs) that combine them, are popular with lifters, but none of them is essential and most of the research is in people with type 2 diabetes rather than healthy gym-goers. For active people, regular exercise, the right amount of carbohydrate, enough fibre and good sleep do far more for healthy glucose metabolism than any capsule.
Blood glucose has become one of the most talked-about topics in health and fitness, with growing interest in metabolic health, carbohydrate intake and glucose monitors. For athletes, glucose isn't simply something to avoid. It's an important source of energy. So what exactly is blood glucose, what does insulin do, and where might these supplements fit? Let's break it down. If you have diabetes, prediabetes or any blood glucose concern, talk to your GP before trying any supplement in this guide.
Blood sugar support supplements compared
| Ingredient | What it is | What research shows | Example we stock |
|---|---|---|---|
| Berberine | Plant compound from barberry and related plants | Most studied of the three, but mostly in small, low-quality trials in people with type 2 diabetes, not healthy gym-goers | Beast Labs Berberine HCl 1200 mg, $59.95 (30 serves) |
| Chromium | Essential trace mineral involved in normal macronutrient metabolism | Mixed and inconsistent; adults need only about 25 to 35 mcg a day | NOW Chromium Picolinate 200 mcg, $10.79 (100 capsules) |
| Cinnamon | Spice; Ceylon (Cinnamomum verum) is lower in coumarin than cassia | Mixed; small effects in some trials in type 2 diabetes, results vary a lot | Found in blends such as HumaSlin |
| GDA blends | Several of the above plus other plant extracts in one product | No published trials on these finished products that we know of | HumaSlin, $89.95; Drive, $89.95 |
Prices are at the time of writing. The research summaries come from the reviews cited at the end of this post.
What is blood glucose?
Blood glucose refers to the glucose circulating through your bloodstream. When you eat carbohydrate foods such as rice, oats, bread, potatoes or fruit, much of that carbohydrate is digested and broken down into glucose. That glucose enters the bloodstream and becomes available for the body to use. Some is used straight away for energy, and some is stored as glycogen in the muscles and liver for later.
This matters for active people because muscle glycogen is an important fuel during demanding exercise. A rise in blood glucose after eating carbohydrates is therefore not automatically a bad thing. It's part of normal human physiology.
How does insulin manage blood glucose?
When glucose enters the bloodstream after a meal, the pancreas releases insulin, an essential hormone that helps move glucose into tissues such as muscle and encourages it to be stored. Think of insulin as part of the body's system for deciding what happens to the nutrients you've eaten. Glucose may be used for energy, taken up by muscle, stored as muscle or liver glycogen, or used in other metabolic processes. As it is taken up, blood glucose moves back toward its usual range, and this happens all day as you eat, train, rest and fast.
What is a blood sugar spike?
You've probably heard social media talk about avoiding "blood sugar spikes". A spike generally means a fairly rapid rise in blood glucose after eating, especially carbohydrates. But some rise after a meal is normal. How quickly and how far it rises depends on the type and amount of carbohydrate, fibre, protein and fat in the meal, physical activity and individual physiology. A meal of rice, chicken and vegetables gives a different response from the same carbohydrate in a sugary drink on its own, which is why judging your whole diet on whether a food raises glucose can be misleading.
Why blood glucose matters for training
Carbohydrates can be extremely useful for athletes. During resistance training, CrossFit, running, cycling, team sports and high-intensity or high-volume training, the body relies heavily on carbohydrate and stored muscle glycogen for energy. After hard sessions, carbohydrates help replenish glycogen stores. Sports nutrition guidelines suggest carbohydrate needs range from about 3 to 5 g per kg of body weight a day for light training up to 8 to 12 g per kg for very high training loads. So instead of asking whether carbohydrates are "good" or "bad", a better question is: how much carbohydrate makes sense for your activity level and goals?
Exercise and glucose disposal
One of the most important things to understand about glucose is the role of skeletal muscle. Muscle is a major site for glucose uptake, and muscle contractions themselves increase glucose uptake, even without extra insulin. Regular exercise also supports insulin sensitivity. That means one of the most effective ways to support healthy glucose metabolism isn't found in a supplement bottle at all. It's physical activity.
What are glucose disposal agents?
Glucose disposal agents, commonly called GDAs, have become popular in bodybuilding and performance nutrition. Despite the name, a GDA doesn't make carbohydrates or glucose "disappear". These products combine ingredients positioned around glucose metabolism, carbohydrate use and nutrient partitioning, and different GDAs contain very different combinations and amounts. These are the ones you will see most often.
Berberine
Berberine is a plant compound that has attracted a lot of research interest around glucose and metabolic health. A 2012 review of 14 trials with 1,068 people with type 2 diabetes found berberine plus lifestyle changes improved blood glucose and blood fats more than lifestyle changes alone. The authors warned that the trials were small and generally of low quality. These results come from research in people with diagnosed diabetes, so they are not a reason to use berberine in place of medical care: anyone with diabetes must manage it with their doctor. There is little research in healthy, active people. Berberine can interact with many medicines, can cause stomach upset or constipation, and is not suitable during pregnancy or breastfeeding.
Beast Labs Berberine HCl 1200 mg is one of our best-selling berberine products over the last six months. It gives 1,200 mg of berberine HCl per two-capsule serve, about $2.00 a serve. Read more in our berberine guide.
Chromium
Chromium is an essential trace mineral involved in normal macronutrient metabolism. Adults need only about 25 to 35 mcg a day, which most people get from food. Studies of chromium supplements for glucose control have given mixed and inconsistent results, according to the US National Institutes of Health. NOW Chromium Picolinate 200 mcg ($10.79 for 100 capsules) is a simple single-ingredient option if you want to try it, but more is not better.
Cinnamon and alpha-lipoic acid
Cinnamon extracts are common in glucose support formulas. A 2013 review of 10 trials in people with type 2 diabetes found cinnamon (120 mg to 6 g a day) was linked with lower fasting glucose but did not change HbA1c, a longer-term marker, and results varied widely between studies. Cassia cinnamon contains coumarin, so large daily amounts are not a good idea; Ceylon cinnamon (Cinnamomum verum) contains much less. Alpha-lipoic acid (ALA) is a compound involved in cellular energy metabolism that has also been studied in relation to glucose, with limited evidence in healthy people.
HumaSlin and Drive
For customers interested in this specialised category, we stock HumaSlin by Condemned Labz and Drive by Day One Performance. HumaSlin is designed to be taken with carbohydrate-containing meals. Each three-capsule serve lists 600 mg Ceylon cinnamon bark, 500 mg berberine HCl, 400 mg gymnema extract, 200 mg alpha-lipoic acid, 200 mg fenugreek extract, 50 mg banaba leaf extract and 20 mg vanadyl sulfate, plus digestive enzymes, with 30 serves a bottle. Drive contains Digezyme digestive enzymes; our listing does not show full amounts, so check the label.
Rather than thinking of these as something that "blocks" carbohydrates, view them as an addition to an already structured nutrition and training plan, not a substitute for one. We are not aware of published trials on either finished product, so any effect is based on the individual ingredients. Always follow the current label directions.
Do you actually need a blood sugar support supplement?
Not necessarily. For healthy people, the body already has sophisticated ways to regulate blood glucose. Before considering a GDA, the foundations should include:
- Regular exercise, particularly resistance training and general activity.
- Balanced nutrition, with carbohydrate intake suited to your activity and goals.
- Enough fibre from vegetables, fruit, legumes, whole grains, nuts and seeds.
- Enough protein to support muscle maintenance and growth.
- Quality sleep, because sleep and metabolic health are closely connected.
- Appropriate energy intake, because no GDA makes total calories irrelevant.
For experienced athletes already covering those basics, a GDA may be another specialised tool to explore. It shouldn't be considered essential for everyone.
GDAs are not diabetes medicines
This distinction is extremely important. Sports nutrition GDAs and blood sugar support supplements are not medicines for diabetes, prediabetes or high blood glucose, and should never replace medical care. A bodybuilder trying a nutrient-partitioning product around a high-carbohydrate diet is in a completely different situation from someone managing a blood glucose condition. If you have diabetes, prediabetes, hypoglycaemia or another blood glucose concern, take glucose-lowering medicine or any regular medication, or are pregnant, talk to your GP or pharmacist before using these supplements. Some ingredients may affect glucose levels or interact with medicines.
The bottom line: carbohydrates aren't the enemy
Blood glucose is a normal and essential part of metabolism. Carbohydrates are broken down into glucose, insulin helps regulate it, and your cells use it for energy or store it for later. For athletes, this is closely linked with training fuel, muscle glycogen and recovery. The more important factors are how much you eat, the quality of your overall diet, how active you are and what you are trying to achieve.
Our pick: if you are a healthy lifter on a structured high-carbohydrate diet and want to try a GDA, HumaSlin has a fully listed formula with Ceylon cinnamon and berberine in one capsule. If you prefer a single ingredient, Beast Labs Berberine is the most popular choice. Either way, supplements should come after the basics: train consistently, eat for your goals, get enough protein and fibre, and prioritise sleep. Browse the full blood sugar support range, see our supplements guide, or read about carbohydrates for muscle mass.
How our price compares
Here is what the same products cost at other Australian supplement stores, so you can check the difference yourself.
| Product | Supps247 | Nutrition Warehouse | ASN | Elite Supps | Supplement Mart |
|---|---|---|---|---|---|
| Drive by Day One Performance | $89.95 | Not listed | $89.95 | $94.90 | Not listed |
Supps247 prices come from our website. Other prices were checked on the websites of Nutrition Warehouse, Australian Sports Nutrition (ASN), Elite Supps and Supplement Mart on 29 October 2026 (same product and size, price for one unit) and can change at any time. Not listed means we could not find that exact product on their site. Supps247 members can use our Price Match Guarantee against Nutrition Warehouse, ASN, Elite Supps and Supplement Mart: we beat their full price by 5% or match their sale price (conditions apply).
Shop the products in this guide
HumaSlin by Condemned Labz 30 serves$89.95
Beast Labs Berberine HCl 1200 mg$59.95
NOW Chromium Picolinate 200 mcg$10.79
Drive by Day One Performance$89.95
Browse all blood sugar support supplements and carbohydrate supplements.
FAQs
What is the best supplement for blood sugar support?
There is no single best option, and none replaces exercise, a balanced diet and medical care. Berberine has the most research, but mostly in small, low-quality trials in people with type 2 diabetes. Chromium and cinnamon have mixed results. If you have any blood glucose concern, talk to your GP before trying a supplement, as some can interact with medicines.
What does a glucose disposal agent do?
A glucose disposal agent (GDA) is a blend of ingredients such as berberine, cinnamon, alpha-lipoic acid and gymnema, positioned around carbohydrate use and nutrient partitioning. It does not make carbohydrates or calories disappear. We are not aware of published trials on finished GDA products, so any effect is based on research into individual ingredients, often at different doses.
Can I take berberine with metformin or other medicines?
Do not combine berberine with diabetes medicines or other prescription medicines unless your GP or pharmacist says it is safe. Berberine may add to the glucose-lowering effect of diabetes medicines and can change how the body processes some other drugs. It is also not suitable if you are pregnant or breastfeeding.
Should athletes avoid blood sugar spikes?
Not necessarily. A rise in blood glucose after a carbohydrate meal is normal, and athletes rely on carbohydrate and muscle glycogen to fuel hard training and recovery. What matters more is how much carbohydrate you eat for your training load, the overall quality of your diet, and how active you are, rather than avoiding every rise in glucose.
When should I take HumaSlin?
HumaSlin is designed to be taken with carbohydrate-containing meals, at the serve shown on the label (three capsules per serve, 30 serves per bottle). Do not take more than the label directs. Check with your GP or pharmacist first if you take any medicine, have a blood glucose condition, or are pregnant or breastfeeding, because it contains berberine.
Where can I buy blood sugar support supplements in Australia?
You can buy berberine, chromium and GDA products such as HumaSlin and Drive online at Supps247 with Australia-wide delivery, free shipping on orders of $99.99 or more and Afterpay at checkout. You can also use click and collect or visit a Supps247 store in Victoria or Queensland (stock varies by store).
Sources: Dong et al. (2012), berberine in type 2 diabetes systematic review; Allen et al. (2013), cinnamon in type 2 diabetes meta-analysis; NIH Office of Dietary Supplements, chromium fact sheet; Richter and Hargreaves (2013), exercise, GLUT4 and muscle glucose uptake; Thomas et al. (2016), nutrition and athletic performance position stand; product labels and brand nutrition panels, checked October 2026.
Order online with Australia-wide delivery, free on orders of $99.99 or more, with Afterpay available at checkout. You can also use click and collect at a store that offers it, or visit a Supps247 store in Melbourne, regional Victoria or Brisbane to compare products in person. Members can use our member price match on full-priced items.
Prices and stock were checked on 29 October 2026 and can change at any time. Always read the label and follow the directions for use. If you have a medical condition, are pregnant or take regular medication, check with your doctor first.
