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.
Moreover, metformin improves insulin sensitivity and decreases fasting insulin levels in cognitive impairment patients with abnormal glucose metabolism (31). Metformin is a rational treatment choice for pregnant women with T2D, gestational diabetes (GDM), and polycystic ovarian syndrome (PCOS).
Slowing cellular senescence: Cellular senescence (when cells stop dividing and functioning correctly) contributes to the onset of age-related diseases. In cell studies, metformin delays cellular senescence, reducing the impact of senescent (“dead”) cells on aging.
Metformin has a low incidence of hypoglycemia. Metformin is the one diabetes drug which will either have no effect on patients' weights or in some instanceswill help patients lose weight. Metformin is not metabolized in the body so it does not cause harm to any specific organ.
“Because the metformin helps your cells absorb sugar like they should, I've noticed an increase in energy and the ability to actually feel satisfied and not want to snack so much because my body's utilizing sugar like it should,” Steve says.
How long to take it for. Treatment for diabetes is usually for life. But if your kidneys are not working properly, your doctor will tell you to stop taking metformin and switch you to a different medicine. Do not stop taking metformin without talking to your doctor.
A meta-analysis published in 2017 that included 53 different studies concluded that metformin reduces all-cause mortality and diseases of aging, independent of its effect on diabetes.
More serious side effects are rare. They include severe allergic reactions and a condition called lactic acidosis, a buildup of lactic acid in the bloodstream. The risk for this is higher among people with significant kidney disease, so doctors tend to avoid prescribing metformin for them.
Proven long-term side effects of metformin
Of those discussed above, low vitamin B12 levels is the only proven long-term metformin side effect. But, as mentioned, low vitamin B12 levels can cause other problems, including anemia. That's why it's important to go for all recommended blood tests while taking metformin.
As much as possible, avoid white bread, white rice, white pasta, candy, soda, desserts, and snacks like chips or crackers. Eating foods that can spike your blood sugar will not necessarily make the metformin not work, however, it will increase the burden it has to work against.
Long-term side effects
Taking metformin can cause vitamin B12 deficiency if you take it for a long time. This can make you feel very tired, breathless and faint, so your doctor may check the vitamin B12 level in your blood. If your vitamin B12 levels become too low, vitamin B12 supplements will help.
Common metformin alternatives are SGLT-2 Inhibitors (Invokana, Farxiga, Jardiance, and Steglatro), GLP – 1 Receptor Agonists ( Bydureon, Byetta, Ozempic, Adlyxin, Rybelsus, Trulicity, and Victoza), Sulfonylureas or SFUs { DiaBeta, Glynase, or Micronase (glyburide or glibenclamide) Amaryl (glimepiride) Diabinese ( ...
If you stop taking metformin abruptly, your health may suffer. You may experience side effects such as higher blood sugars, an increased A1c, and even weight gain. Over time, higher blood sugar levels can lead to diabetes complications, including: Retinopathy and blindness.
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.
South Korea Bans Several Metformin Medications
In May 2020, the Ministry of Food and Drug Safety in South Korea—the equivalent of the Food and Drug Administration (FDA) in the U.S.—reported that 31 metformin drugs tested contained levels of NDMA that exceeded the permissible level.
Metformin is not currently approved as an anti-aging treatment. While some doctors may be willing to prescribe it off-label, it's best to speak with your health care provider about the risks versus any potential benefits.
Numerous research groups have reported that metformin has beneficial effects on a variety of inflammatory skin disorders including psoriasis, acanthosis nigricans, acne, hidradenitis suppurativa, and allergic contact dermatitis.
Clinically apparent liver injury from metformin is very rare, fewer than a dozen cases having been described in the literature despite widespread use of this agent for several decades. The liver injury usually appears after 1 to 8 weeks, typically with symptoms of weakness and fatigue followed by jaundice.
Why Shouldn't You Stop Taking Metformin? Metformin works by decreasing the amount of sugar your liver releases into your blood, making your body more sensitive to insulin's effects. If you suddenly discontinue use, it can lead to dangerously high blood sugar levels.
As a result, cinnamon seems to be as effective as metformin in increasing the Insulin sensitivity. In line with this study, Maleki et al. showed that HDL and insulin sensitivity were increased by the cinnamon supplementation while LDL, TG, and blood glucose were decreased in patients with PCOS (17).