There's a lot of confusion about GLP-1 right now. With prescription brands dominating the headlines, many people assume GLP-1 is a new drug invented by pharmaceutical companies. It isn't. GLP-1 is a hormone your body has been making naturally your whole life. Here's what it does, how it differs from the medications, and how everyday habits support your own supply.
What is GLP-1?
Glucagon-like peptide-1, or GLP-1, is an incretin hormone: a gut hormone released after you eat that helps coordinate how your body handles a meal. It's made mainly by specialized L-cells in the lining of your intestine.
When you eat, those cells release GLP-1 into your bloodstream. According to a comprehensive review of GLP-1 biology, it prompts your pancreas to release insulin when blood sugar rises, slows the rate at which your stomach empties, and signals your brain that you're full.
Think of it as your body's natural metabolic messenger, part of the system that helps regulate appetite, blood sugar and energy balance. It's basic human biology, not experimental medicine.
Is GLP-1 a hormone or a drug?
Both words get used, which is where the confusion starts. The medications in the news aren't GLP-1 itself. They're GLP-1 receptor agonists: lab-made compounds that bind to the same receptors as your natural hormone and trigger similar effects.
The big difference is how long they last. Your natural GLP-1 is broken down by an enzyme called DPP-4 and has a half-life of about one to two minutes. Medications such as semaglutide are modified for more potency and much longer action, which is why their effects are so much stronger than anything food can produce. They're inspired by your biology, but they're a different thing from the hormone your gut makes every time you eat.
How can you support your body's own GLP-1?
Your gut releases GLP-1 in response to specific signals from food, and research points to several everyday ways to support it. A review of nutrition and GLP-1 describes how gut cells sense nutrients directly.
Fiber
When fiber reaches your colon, gut bacteria ferment it into short-chain fatty acids. In laboratory and animal studies, those fatty acids triggered GLP-1 release from intestinal cells. Beans, oats, berries, vegetables and seeds are all good sources.
Protein
Amino acids and peptides from protein are among the nutrients that gut cells sense and respond to by releasing GLP-1, which is part of why protein-rich meals help with fullness.
Healthy fats
Unsaturated fats also stimulate GLP-1. In one study, a meal made with olive oil produced a bigger GLP-1 response than the same meal made with butter.
Plant compounds
Some plant polyphenols have been studied for their effect on GLP-1. Eriomin is a patented lemon flavonoid extract made up of 70% eriocitrin, with hesperidin and naringin. In a 12-week double-blind, randomized controlled trial in adults with prediabetes, 200 mg a day of Eriomin increased GLP-1 levels by 22% and lowered blood glucose by 6% compared with placebo, alongside changes in gut bacteria.
Exercise
Moving your body helps too. A meta-analysis found that a single bout of exercise raised GLP-1 levels compared with not exercising.
These approaches work with your body's existing system and fit easily into daily life. Their effects are much more modest than prescription medication, so if you have a medical condition such as type 2 diabetes or obesity, work with your doctor on the right plan.
What's in GLP-1 Up?
GLP-1 Up is a daily supplement with four patented, clinically studied plant ingredients, designed to support your body's natural GLP-1 production and a healthy blood sugar response.
- Eriomin: the lemon flavonoid extract described above, studied for its effect on GLP-1 and blood glucose in adults with prediabetes.
- Reducose: a mulberry leaf extract that slows the breakdown of carbohydrates in the gut. In a placebo-controlled trial, it lowered the peak glucose rise after a sugary drink by 40%.
- Morosil: an extract of Moro blood oranges, rich in anthocyanins. In a six-month trial in adults with overweight, combined with diet and exercise, it led to greater reductions in waist and hip circumference and body fat than placebo.
- Feiolix: a whole-fruit feijoa powder. Feijoa fruit is a natural source of flavonoids, vitamin C and fiber.
GLP-1 Up is a dietary supplement, not a substitute for prescription medication. Talk to your doctor before adding it if you're pregnant or breastfeeding, have a health condition, or take medication, especially for diabetes. Learn more in GLP-1 Up: what it is and why it works, or read about foods that help you feel full longer.
