Key takeaways
- Glucagon-like peptide-1 (GLP-1) receptor agonist medications like semaglutide (Ozempic, Wegovy) may help slow biological aging by reducing chronic low-grade inflammation, which damages cells and organs over time.
- In clinical trials, semaglutide lowered inflammation markers by 30% independent of weight loss, and one study found it slowed cellular aging by 9%.
- Doctors currently prescribe GLP-1 medications only for type 2 diabetes and obesity, not for longevity.
Currently, doctors prescribe GLP-1 medications, such as semaglutide and tirzepatide, to help people lose weight and manage type 2 diabetes. However, there’s evidence that these drugs might also help slow biological aging and protect our organs from wear and tear, helping us enjoy more years of good health as we age.
This article will explore how GLP-1 medications might reduce the inflammation that drives aging and how we could use them in the future to improve many aspects of our health.
Biological aging differs from chronological aging, which relates to the passage of time.
Biological aging refers to the health of your cells and organs and how well they function. Two 60-year-olds may be the same chronological age, but depending on their lifestyle choices, genetics, and health factors, their biological aging can be very different.
A major driver of aging is chronic (long term) low-grade inflammation. This happens when the immune system is constantly activated, but not enough to cause symptoms, such as pain or fever.
This type of continuous inflammation can be caused by dietary and lifestyle factors, such as poor sleep, lack of movement, or stress. Over time, it can damage our cells and organs, leading to various chronic diseases.
Evidence is emerging that GLP-1 medications have anti-inflammatory actions that are not simply due to their weight loss effects.
In two large clinical trials, called Sustain and Pioneer, researchers found that semaglutide (the active ingredient in Ozempic and Wegovy) significantly lowered C-reactive protein (CRP) levels. CRP is a marker of inflammation that spikes when your body is under stress or fighting a disease.
The researchers found that weight loss and better blood sugar levels accounted for only about 20% to 60% of the drop in CRP. This suggests that the drug is doing something else to fight inflammation, unrelated to a person’s weight.
To investigate this effect further, researchers conducted the Pioneer 2 trial. They compared people taking semaglutide to people taking a different diabetes drug called empagliflozin (Jardiance).
Both groups lost about the same amount of weight (about 4%), but only those on the GLP-1 medication saw their inflammation levels drop by 30%. The other drug had no effect on inflammation, suggesting that GLP-1s are unique in the way they protect the body.
GLP-1 medications might slow down biological aging in the following ways:
Fighting inflammation
GLP-1 medications may reduce inflammation by activating parts of the brain that signal the immune system to stop overreacting to perceived threats.
This reduces inflammation in organs such as the heart, liver, and kidneys, preventing fibrosis, which is internal scarring that impairs their function as we get older.
GLP-1 medications may also act on immune cells in the gut and directly on joint tissues, like cartilage, to help keep the body’s structures strong and healthy.
Slowing cell and tissue aging
GLP-1 medications may slow the deterioration of cell and tissue health throughout the body.
In a
These effects appear to work independently of weight loss, meaning the drug itself is likely providing these longevity benefits.
Medical Perspective“Inflammation can show up in a few different ways. It can cause redness, swelling, warmth, or pain, or it can be harder to notice with symptoms like fatigue, achy joints, or getting sick more often than usual.
Your doctor can run a simple blood test to look for markers that suggest inflammation may be happening in your body. If you’re curious, it’s worth asking about it at your next checkup.”
Learn more: CRP Home Tests to Help Gauge Your Health
Quotes represent the opinions of our medical experts. All content is strictly informational and should not be considered medical advice.
Currently, doctors only prescribe GLP-1 medications to help with type 2 diabetes and obesity.
The Food and Drug Administration (FDA) has not approved them for aging support or longevity, and this would be considered an off-label use.
Although recent research is promising, large, long-term studies are necessary to determine whether prescribing GLP-1 medications is safe and effective for slowing biological aging.
Most current research is on people who already have obesity or diabetes. To determine whether GLP-1 medications truly promote longevity, researchers need to examine how they affect biological aging in people with a healthy weight.
As experts discover more about the effects of GLP-1 medications, it’s likely that they will be approved for more uses in the future.
Tips for slowing biological aging
Making healthy lifestyle choices can help reduce inflammation and protect the health of our cells and tissues. While many behaviors can bring benefits, some of the most important steps are:
- eating an anti-inflammatory diet with a balance of proteins, carbohydrates, and healthy fats
- being physically active and avoiding long periods of sitting (at least
150 to 300 minutes of moderate-intensity aerobic activity each week) - getting 7 to 8 hours of good quality sleep each night
- maintaining a healthy weight
- avoiding smoking and limiting alcohol
- managing stress
Read more: Habits to Form Now for a Longer Life
GLP-1 medications are showing promising effects for helping slow the rate of biological aging. Research suggests that they reduce the inflammation that can damage our cells and organs over time.
As scientists discover more about these drugs, they may become a useful tool for extending the number of healthy years we have as we age.
Disclaimer: While Healthline strives for factual, comprehensive, and current information, this article is not a substitute for a licensed healthcare professional’s expertise. Always consult a doctor before taking or discontinuing any medication. Drug information is subject to change and may not cover all uses, directions, precautions, warnings, interactions, reactions, or adverse effects. The lack of a warning does not guarantee a drug’s safety, effectiveness, or appropriateness for all patients or specific uses. Learn more about our approach to content integrity.