The market for weight loss drugs is increasing with celebrities often sharing their experiences on social media. Experts predict that the global market for these medications could surpass $100 billion by 2030.
Metformin is long prescribed for diabetes. This is also gaining attention as a weight loss medication. Yet, many people are still unclear about what metformin is and how it should be used. This article covers the essential facts you need to know before considering metformin, including how it works, possible side effects, and who might benefit from it.
What is Metformin?
Metformin is a prescription medication approved by the U.S. Food and Drug Administration (FDA) to treat type 2 diabetes. It is also sometimes used for prediabetes and to help induce ovulation in women with polycystic ovary syndrome (PCOS). You can find it as a generic drug or under brand names like Fortamet and Glumetza. Metformin belongs to a class of diabetes medications called biguanides.
Biguanides work by regulating blood sugar levels and improving insulin sensitivity. Metformin enters your bloodstream and travels to the liver after you take it which plays a key role in managing blood glucose. Metformin reduces the production of new glucose by the liver and limits the release of stored glucose into the bloodstream helping lower overall blood sugar levels.
Metformin also makes your body more responsive to insulin which is the hormone responsible for moving sugar into cells. The pancreas still produces insulin in type 2 diabetes but the cells of your body fail to use it properly. This is a problem known as insulin resistance. Metformin allows muscle and other tissues to absorb more glucose and use it for energy by improving insulin sensitivity.
This dual action of reducing glucose production and increasing insulin response helps your body maintain healthier blood sugar levels. Metformin is available as a standard oral tablet or an extended release version.
How Does Metformin Work for Weight Loss?
Metformin is a FDA-approved drug for managing blood sugar level in patients with type 2 diabetes. Its use for weight loss is considered off-label which means that the FDA has not officially approved it for this purpose. Many have explored its potential as a tool for managing excess body weight because weight loss is a common side effect of metformin.
Metformin helps with weight management by reducing appetite, improving insulin sensitivity, and influencing hormones such as GLP-1 which regulate blood sugar and hunger. Cells do not respond properly to insulin in people with type 2 diabetes which can lead to weight gain and make losing extra pounds more difficult. Metformin helps by making cells more responsive to insulin, lowering blood sugar, and reducing the tendency of your body to store excess glucose as fat.
A study was conducted with non diabetic obese participants to study the impact of metformin for weight loss. Results showed that those taking metformin lost an average of 5.8 kg while participants in the placebo group gained weight.
Metformin is effective for individuals with higher insulin resistance. The Diabetes Prevention Program Outcomes Study found that participants who combined metformin with lifestyle changes such as a healthy diet and regular exercise achieved more significant long term weight loss than those who did not take metformin.
Metformin may also aid weight loss by influencing the gut microbiome and hormone levels including leptin which helps regulate appetite and energy balance. A study was conducted with rats recently and researchers found that metformin improved the ability of leptin to suppress appetite and reduce fat. Rats treated with metformin needed less leptin to control hunger and fat accumulation compared with untreated rats.
Is Metformin Safe?
The FDA has approved metformin to help regulate blood sugar in people with type 2 diabetes. This approval comes from clinical trials demonstrating that metformin is both safe and effective when used as directed.
Metformin can cause side effects in some people while generally considered safe. These side effects are mostly related to digestion. Common gastrointestinal effects include diarrhea, bloating, stomach pain, gas, indigestion, constipation, and heartburn. These effects can sometimes reduce food intake, which may contribute to weight loss although uncomfortable. More serious side effects include hypoglycemia which is known as low blood sugar and lactic acidosis which is building up of lactic acid in the blood.
Metformin may not be suitable for everyone. Your doctor may avoid prescribing it if you are over 65 years old, have a history of heart attack, heart disease, or stroke, have experienced diabetic ketoacidosis, have liver or kidney disease and are pregnant, trying to conceive, or breastfeeding.
You should tell your doctor about any existing medical conditions, medications, supplements, or allergies before starting metformin. This helps reduce the risk of interactions or adverse reactions.
Who should take Metformin for Weight Loss?
Metformin is FDA approved to help regulate blood sugar in patients with diabetes. Its use for weight loss is considered off-label which means that weight reduction is not the primary purpose of the medication.
Metformin may be prescribed to adults with or without type 2 diabetes. This medication is recommended for adults with obesity (BMI of 30 kg/m² or higher) or for overweight adults (BMI of 27 kg/m² or higher) who also have weight related health conditions such as high blood pressure, high cholesterol, or sleep apnea when it used for weight management.
The drug may also be used to counteract weight gain caused by certain atypical antipsychotic medications. You should speak with your doctor to see if metformin could help if you are experiencing weight gain as a side effect of these drugs.
You should understand that metformin works best when combined with other strategies such as a balanced diet and regular exercise. Taking metformin alone is not an effective way to achieve healthy weight loss.
Is Metformin Better than Ozempic for Weight Loss?
Metformin and Ozempic are different medications with distinct purposes although both can support weight loss.
Metformin is mainly prescribed to manage blood sugar in people with type 2 diabetes. Its primary role is improving insulin sensitivity and lowering blood sugar levels while it may help some patients lose a modest amount of weight.
Ozempic belongs to a class of drugs called glucagon-like peptide-1 (GLP-1) receptor agonists. It is used to control blood sugar in type 2 diabetes, the same as metformin. But it has also gained attention for its weight loss effects. Clinical studies show that Ozempic leads to greater weight reduction than metformin.
Which medication is better for weight loss depends on individual factors including medical history, personal preferences, and guidance from a medical practitioner.
Are There Alternatives to Metformin for Weight Loss?
Several medications are specifically designed to treat obesity. You should talk to your doctor about GLP-1 drugs such as Wegovy, Zepbound or Saxenda for a targeted approach. Wegovy contains the same active ingredient as Ozempic which is semaglutide. But Wegovy is FDA-approved specifically for weight loss.
How Do I Get a Prescription for Metformin?
Metformin is a prescription medication that you need to obtain a written order from a licensed medical practitioner to obtain the drug from pharmacies. It is available as a generic drug as well as under several brand names.
Weight loss medications are prescribed for adults with obesity or for those who are overweight and have weight related health conditions. You should speak with your doctor to determine if it is the preferred choice for you if you are considering metformin or any other weight loss drug. Be sure to discuss potential side effects, costs, and any other questions or concerns you may have.
Healify Clinic provides an affordable and comprehensive online telehealth care to support you on your weight management journey. You can book your appointment online and consult a licensed doctor that provides video consultation with weight management. The website also provides access to weight loss medication prescriptions when appropriate, unlimited messaging with your provider, ongoing guidance, and additional support throughout your journey. So that you can determine which drug is best for your condition depending on your health condition with the help of our licensed and more experienced medical practitioners.
