Available to Australian residents only
The seller's page does not list side effects. That does not mean there are none. Here is what is reasonable to expect from the ingredients, who should see a GP or pharmacist before trying it, and when to get help.
This guide is general information about the ingredients on the AltBurn Keto product page: BHB salts (sodium, calcium and magnesium), green tea leaf extract and apple cider vinegar, in an 800 mg blend per serve with the individual doses undisclosed. We have not tested the product and cannot tell you what it will do for you. It is not medical advice.
If you feel seriously unwell, call 000. That includes confusion, trouble breathing, severe stomach pain, repeated vomiting, fainting or chest pain.
Possible side effects
Healthdirect lists stomach upset, headache, nausea and dehydration among the short-term effects of keto eating. Ketone supplements are not the same as a keto diet, but the capsules bring several things that can cause similar complaints. Based on the ingredients, these are the effects people most commonly notice with products like this one.
- Stomach upset, nausea or cramps. Mineral salts, especially magnesium and calcium, and vinegar can irritate the stomach, particularly on an empty stomach.
- Loose bowels or diarrhoea. Magnesium can have a laxative effect. If this happens, it is a sign to stop and rethink, not to push through.
- Headache. This can come from caffeine, poor hydration or changes in what you eat.
- Trouble sleeping, jitters or a racing heart. Green tea extract usually contains caffeine. The label does not say how much. If you are sensitive, avoid taking capsules in the afternoon or evening and count your coffee and energy drinks.
- Heartburn or an uncomfortable throat. Take capsules with a full glass of water and stay upright.
The seller says to take two capsules with water, 20 to 30 minutes before a meal. Some people find stomach upset worse on an empty stomach. Do not change the serve on your own, and do not take more than the label says. Our guide on how to take AltBurn Keto capsules covers the seller's directions.
The mineral load: sodium, calcium and magnesium
BHB in these capsules is bound to minerals. That means each serve adds some sodium, calcium and magnesium to your day. The seller says the product has no added salt, but sodium BHB still carries sodium. We cannot say how much, because the blend dose is undisclosed. For a healthy adult with a normal diet, small amounts are unlikely to matter. They can matter if your kidneys do not clear minerals well, if you have high blood pressure and have been told to limit sodium, or if you already take calcium, magnesium or antacid products. Kidney Health Australia runs a Kidney Helpline on 1800 454 363 if you have kidney disease and want to talk to someone.
Who should talk to a GP or pharmacist first
| If this applies to you | Why it matters |
|---|---|
| Type 1 diabetes, or you use insulin | Raising ketones adds to the risk of diabetic ketoacidosis. Healthdirect lists type 1 diabetes among those who should avoid keto diets |
| You take an SGLT2 inhibitor for type 2 diabetes | The TGA has warned about ketoacidosis with these medicines, sometimes with only moderately raised blood glucose |
| Kidney disease | Mineral salts add to what your kidneys must handle. Healthdirect lists kidney disease among those who should avoid keto diets |
| Pregnant or breastfeeding | Healthdirect advises against keto diets in pregnancy and breastfeeding, and there is no safety data on these capsules for you |
| Under 18 | Healthdirect notes low-carbohydrate diets can affect growth in children |
| History of an eating disorder | Weight loss products can feed unhelpful patterns. Talk to your GP or a dietitian first |
| High blood pressure, or you take diuretics or heart medicines | Sodium and fluid shifts matter, and diuretics can change your mineral levels |
| Liver problems or heavy alcohol use | Green tea extract has been linked to rare cases of liver injury |
| Allergies to rice, gelatin or other ingredients | Check the full label and ask your pharmacist |
The Diabetes Australia helpline is 1800 177 055 if you have diabetes and want to talk before starting anything new. Never stop or change a prescribed medicine on your own because of something you read online.
Ketoacidosis: the serious one
Ketones are normal in small amounts. Ketoacidosis is when ketones build up so much that the blood becomes too acidic. Healthdirect describes it as a life-threatening state needing urgent care. It mainly affects people with diabetes, and the risk is higher with fasting, very low carbohydrate intake, dehydration or illness.
The TGA lists early signs as abdominal pain, nausea, vomiting, loss of appetite, excessive thirst, difficulty breathing, unusual tiredness and sleepiness. In people on SGLT2 inhibitors, ketoacidosis can occur even when blood glucose looks only mildly raised, so a normal-looking reading is not reassuring on its own. If you have diabetes and any of these signs, get urgent medical help.
The takeaway: if you have diabetes of any type, are on an SGLT2 inhibitor, or use insulin, do not use a ketone supplement without your GP or diabetes team agreeing.
Green tea extract and the liver
Most people tolerate green tea well. But the European Food Safety Authority concluded in 2018 that rare cases of liver injury have been reported with green tea catechins and that supplement doses of 800 mg EGCG a day or more raised liver enzymes in trials (PubMed 32625874). We do not know the EGCG content of AltBurn Keto. Stop taking it and see a doctor if you notice yellow skin or eyes, dark urine, pale stools, unusual itching or pain at the top right of your stomach.
When to stop and get help
- Mild stomach upset or loose bowels: stop taking the capsules, drink fluids and see how you go. If it continues for more than a couple of days, talk to your pharmacist or GP.
- Anything that worries you: call healthdirect on 1800 022 222 to speak to a registered nurse, which is available around the clock.
- Took too many, or a child swallowed some: call the Poisons Information Centre on 13 11 26, which is open 24 hours. Do not wait for symptoms.
- Severe symptoms: confusion, trouble breathing, fainting, severe vomiting or chest pain. Call 000.
- After any reaction: keep the bottle and tell your GP exactly what you took, and if it was a bad reaction, ask about reporting it to the TGA.
Where this product sits on safety information
We could not verify an ARTG listing for AltBurn Keto, and we could not see a lab report or the dose of any ingredient. That limits how much anyone can say about its safety. See our review of what could and could not be checked. If the seller cannot or will not give you the ingredient amounts, take that into account. The seller's 60-day guarantee, according to the seller, is for refunds, not for health outcomes.
Frequently asked questions
What are the possible side effects of AltBurn Keto?
The seller does not list side effects. For BHB salts, green tea extract and vinegar, the likely effects are stomach upset, nausea, loose bowels, headache and, if you are sensitive to caffeine, trouble sleeping. Rarer and more serious risks apply to specific groups.
Who should not take AltBurn Keto?
Talk to your GP or pharmacist first if you are pregnant or breastfeeding, under 18, have diabetes, kidney or liver disease, high blood pressure, a history of eating disorders, or take regular medicines.
Is it safe with diabetes medicines like insulin or SGLT2 inhibitors?
Do not start it without speaking to your GP or diabetes team. Raising ketones can be dangerous for people with type 1 diabetes or those on insulin or SGLT2 inhibitors because of the risk of ketoacidosis.
What are the warning signs of ketoacidosis?
Nausea, vomiting, stomach pain, extreme thirst, unusual tiredness or sleepiness, fast or deep breathing and confusion. This is an emergency, so call 000.
Who can I call if I feel unwell after taking it?
healthdirect is on 1800 022 222 for a registered nurse, any time. The Poisons Information Centre is on 13 11 26. In an emergency call 000.
Can I take AltBurn Keto with other medicines?
Ask your pharmacist. Medicines for blood pressure, diuretics, diabetes medicines and anything that affects the liver or kidneys are worth checking, and take the bottle with you.
Related guides
Sources and further reading
- healthdirect: Ketogenic diet
- TGA: SGLT2 inhibitors used to treat type 2 diabetes
- NSW Poisons Information Centre
- Diabetes Australia
- Kidney Health Australia
- PubMed: EFSA scientific opinion on the safety of green tea catechins (2018)
Last reviewed 12 October 2026. This guide is general information and not medical advice. It does not replace advice from your GP, pharmacist or other health professional.