GLP-1
Glucagon-like peptide-1 — an intestinal hormone that regulates satiety and blood sugar. Basis for Ozempic/Wegovy.
What is GLP-1?
GLP-1, or glucagon-like peptide-1, is an important gut hormone that plays a central role in the regulation of blood sugar and satiety. It is produced in the intestine in response to food intake and helps stimulate insulin secretion from the pancreas, which contributes to lowering blood sugar levels. GLP-1 also acts by inhibiting glucagon secretion, a hormone that raises blood sugar. This hormone has become a cornerstone in the treatment of type 2 diabetes and obesity, and forms the basis for medications such as Ozempic and Wegovy.
How does it work in the body?
GLP-1 works by binding to specific receptors in the body, resulting in several important effects:
- Increased insulin secretion: When blood sugar levels are elevated, GLP-1 stimulates the pancreas to release more insulin, which helps lower blood sugar levels.
- Inhibition of glucagon: GLP-1 reduces the secretion of glucagon, a hormone that normally raises blood sugar.
- Improved satiety: The hormone affects the central nervous system and increases the feeling of fullness, which can lead to reduced calorie intake.
- Delayed gastric emptying: GLP-1 contributes to a delay in gastric emptying, resulting in a slower release of glucose into the bloodstream.
Scientific benefits
Research has shown that GLP-1 and its analogues offer several health benefits:
- Blood sugar regulation: Studies have shown that GLP-1 receptor agonists can lower blood sugar levels in people with type 2 diabetes. A meta-analysis published in The Lancet demonstrated that these agents significantly improved glycaemic control.
- Weight loss: Several studies indicate that GLP-1 analogues can lead to weight loss in overweight and obese patients. A study in the New England Journal of Medicine showed that participants using Wegovy lost an average of 15% of their body weight.
- Cardioprotective effects: Research suggests that GLP-1 receptor agonists may reduce the risk of cardiovascular diseases in people with diabetes. A large study published in Diabetes Care showed that these agents reduced the risk of heart attack and stroke.
Dosage and recommendations
The dose of GLP-1 analogues, such as Ozempic and Wegovy, can vary depending on the individual's needs and the medication's specifications. Treatment usually starts with a low dose that is gradually increased to minimise side effects. It is important to follow the doctor's recommendations carefully to achieve the best results.
Best sources and forms
GLP-1 is naturally present in the body, but for therapeutic purposes, GLP-1 analogues are used as synthetically produced medications. These drugs are most often administered as a subcutaneous injection and can be an important part of the treatment of type 2 diabetes and obesity. It is important to discuss with a doctor whether these treatments are appropriate for you.
Side effects and warnings
As with all medications, GLP-1 analogues can cause side effects. Common side effects include:
- Nausea
- Abdominal cramps
- Diarrhoea
- Constipation
Serious side effects are rare but may include pancreatitis and kidney problems. It is important to inform your doctor of any side effects and discuss risks before starting treatment with GLP-1 analogues.
Frequently asked questions
What is the difference between GLP-1 and GLP-1 analogues?
GLP-1 is a natural hormone produced in the body, whereas GLP-1 analogues are synthetically produced medications that mimic the hormone's action and are used to treat type 2 diabetes and obesity.
Are GLP-1 injections safe to use?
GLP-1 injections are generally safe for most people, but like all medications, they can have side effects. It is important to discuss with a doctor before starting treatment.
Can GLP-1 help with weight loss?
Yes, several studies have shown that GLP-1 analogues can lead to significant weight loss in people who are overweight or obese, especially when combined with a healthy diet and physical activity.
How long does it take to see results from GLP-1 analogues?
Results can vary, but many users report improvements in blood sugar levels and weight loss within a few weeks of starting treatment.
Are GLP-1 analogues expensive?
The cost of GLP-1 analogues can vary depending on insurance coverage and where you live. It is advisable to check with your insurance provider to see what is covered.