Conclusion: Metformin is an effective drug to reduce weight in a naturalistic outpatient setting in insulin sensitive and insulin resistant overweight and obese patients.
Metformin and weight loss
In a much larger trial in over 4,000 people with type 2 diabetes, it was found metformin use was associated with a 2.4 kg (roughly 5.3 lbs) weight loss over a four-year period. There are a few ways that metformin might impact weight. One is that the medication can reduce your appetite.
Metformin treatment brought about a significant reduction of visceral fat mass compared to controls accompanied by an up-regulation of fat oxidation-related enzyme in the liver, UCP-1 in the brown adipose tissue and UCP-3 in the skeletal muscle.
In fact, a doctor might prescribe metformin for weight loss even if you don't have diabetes or prediabetes. This is an off-label use. Off label means that the FDA hasn't approved a drug for a specific use, which in this instance is as a weight loss aid.
Is Metformin an Effective Weight Loss Pill? No. The amount of weight you're likely to lose is low. In one diabetes prevention study, 29% of people lost 5% or more of their body weight and just 8% lost around 10%.
The use of metformin by non-diabetics stems from some evidence that metformin can decrease inflammation, protect against cardiovascular disease and cognitive impairment, minimize cancer risk and progression, and prolong life.
Metformin—a safe and inexpensive glucose-lowering drug—is sometimes used to treat non-diabetic people with polycystic ovarian syndrome, for aiding weight loss, and for some people with impaired glucose tolerance, partly on the basis of its purported cardiovascular benefits.
An early study on people with diabetes and morbid obesity found significant weight loss after 28 weeks of metformin alongside a healthy diet. Other risk factors for coronary heart disease were lowered as well, including fasting insulin, leptin, and LDL cholesterol.
Conclusion: Metformin is an effective drug to reduce weight in a naturalistic outpatient setting in insulin sensitive and insulin resistant overweight and obese patients.
Metformin may improve muscle mass, energy production and therefore your metabolism. Lastly, metformin has been shown to improve metabolism through a variety of factors. Whenever insulin resistance is present your muscles will start to atrophy.
Other symptoms related to Type 2 diabetes, such as blurred vision, headaches, dry mouth, increased thirst, and frequent urination may noticeably decrease or disappear. These are all signs that metformin is doing its job.
Here are the other long-term benefits you can expect: You'll have more energy as your body uses insulin more efficiently. Common diabetes-related symptoms, such as blurry vision, being thirsty all of the time, or having to pee a lot, improve or disappear.
Under certain conditions, too much metformin can cause lactic acidosis. The symptoms of lactic acidosis are severe and quick to appear, and usually occur when other health problems not related to the medicine are present and are very severe, such as a heart attack or kidney failure.
Metformin doesn't cause kidney damage. The kidneys process and clear the medication out of your system through your urine. If your kidneys don't function properly, there's concern that metformin can build up in your system and cause a condition called lactic acidosis.
Research notes that people who take metformin have lower hunger levels. The drug does not suppress the appetite but instead changes the part of the brain that regulates appetite desire. Metformin may lead people to eat less at each meal, which may help them lose weight.
Outside of their work, other scientists are hailing metformin as a wonder drug not only because of its effect on Type 2 diabetes, but because of its emerging prominence in cancer research and potential influence in the lungs of those diagnosed with tuberculosis.
Recent studies have also found that metformin has a positive effect on cardiovascular protection [8,9,10,11,12]. Metformin also lowers risk factors for cardiovascular disease such as blood fats [13,14,15], body weight and blood pressure.
This medicine is not recommended in patients 80 years of age and older who have kidney problems.
Nausea and diarrhea are common side effects of metformin, but they usually improve within a few weeks of starting the medication. You can limit these side effects by taking metformin with food. Metformin can cause more serious side effects like lactic acidosis, low vitamin B12 levels, and low blood sugar.
Metformin does cause side effects in some people, but many of these are mild, and are associated with taking the medicine for the first time. Nausea and gastric distress such as stomach pain, gas, bloating, and diarrhea are somewhat common among people starting up on metformin.
This is because an unacceptable level of a probable carcinogen (cancer-causing agent) was found in some extended-release metformin tablets. If you currently take this drug, call your healthcare provider. They will advise whether you should continue to take your medication or if you need a new prescription.