What is GLP-1? The Gut Hormone Explained

By Fadi — Unicity Senior Director Distributor & Metabolic Coach · Published 2026-06-22 · Updated 2026-10-25 · 9 min read

Written by Fadi, an independent Unicity distributor who earns a commission on orders placed through this site. Educational content, not medical advice. Product research: unicityscience.org · unicity.com.

Quick answer: GLP-1 is a gut hormone involved in hunger, insulin and digestion. Learn how it works and what role food and lifestyle may play. Talk to your doctor.

GLP-1 — glucagon-like peptide-1 — is the gut hormone you keep hearing about, largely because it is the target of blockbuster weight loss drugs like Ozempic (semaglutide), Wegovy, and Mounjaro. But GLP-1 is not a pharmaceutical invention. Your body makes it naturally, every time you eat.

Understanding what GLP-1 does, why some people have less of it, and how to increase it through diet and lifestyle is one of the most practical things you can do for your metabolic health in 2026.

What Does GLP-1 Do?

GLP-1 acts on multiple organs simultaneously:

In the pancreas: GLP-1 stimulates beta cells to release insulin in response to glucose — but crucially, only when blood glucose is elevated. This means it lowers blood sugar without causing dangerous hypoglycemia. It also suppresses glucagon, the hormone that signals the liver to release stored glucose.

In the stomach: GLP-1 slows gastric emptying — the rate at which food moves from your stomach to your small intestine. Slower gastric emptying means a more gradual rise in blood sugar after a meal, smaller insulin spikes, and a feeling of fullness that lasts longer.

In the brain: GLP-1 acts on the hypothalamus to reduce hunger and increase satiety signals. This is why GLP-1 receptor agonist drugs like Ozempic are so effective at reducing appetite — they flood the brain's satiety receptors.

In the heart: GLP-1 receptors exist in cardiac tissue. GLP-1 receptor agonists have been shown in clinical trials to reduce cardiovascular events in people with type 2 diabetes, though the mechanisms are still being studied.

Why GLP-1 Matters for Weight Loss

Obesity and metabolic dysfunction are closely linked to impaired GLP-1 secretion. People with type 2 diabetes and obesity typically have a blunted GLP-1 response after meals — their guts secrete less of the hormone than lean, metabolically healthy individuals, meaning they feel less full, produce less insulin-stimulating signal, and experience larger post-meal blood sugar swings.

This creates a self-reinforcing cycle: low GLP-1 → larger insulin spikes → more fat storage → more insulin resistance → even lower GLP-1 response. Breaking this cycle is the metabolic challenge at the heart of weight management.

GLP-1 Drugs vs. Natural GLP-1 Boosting

GLP-1 receptor agonist drugs (semaglutide, liraglutide, tirzepatide) work by mimicking or amplifying GLP-1 signals. They are highly effective but come with significant side effects (nausea, vomiting, muscle loss, unknown long-term effects) and cost $900–$1,200/month without insurance.

There is a growing body of evidence that several natural interventions increase endogenous GLP-1 secretion:

• Soluble fiber — particularly viscous fiber like beta-glucan and psyllium husk. Fiber fermentation in the gut produces short-chain fatty acids that stimulate L-cells to release GLP-1. Unicity Balance's Biosphere Fiber matrix is specifically designed to maximize this effect.
• Intermittent fasting — some research, including a study in Cell Metabolism, has looked at time-restricted eating and GLP-1 response; results vary.
• Yerba mate — preliminary research has looked at yerba mate extract and GLP-1 in animal models. Human evidence is limited.
• Protein-rich meals — protein is the strongest food-based stimulator of GLP-1 secretion. A high-protein first meal after fasting produces a significantly larger GLP-1 response than a carbohydrate-first meal.
• Polyphenols — compounds in green tea, coffee, berries, and dark chocolate have been studied in relation to GLP-1.

The Feel Great System and GLP-1

The Feel Great System combines two products — Unimate (yerba mate concentrate) and Unicity Balance (patented Biosphere Fiber) — with the 16:8 intermittent fasting protocol. This combination addresses GLP-1 from multiple angles:

• Unicity Balance's viscous fiber dramatically slows gastric emptying and stimulates L-cell GLP-1 release before meals
• 16:8 eating windows are one lifestyle pattern people explore. Talk to your doctor before trying fasting.

This is why many users describe the Feel Great System as a "natural Ozempic" — not because it replicates the drug, but because it activates many of the same metabolic pathways through evidence-based nutritional interventions.

Take our free 2-minute quiz for a routine recommendation. This is not medical advice.

To learn more about optimizing your metabolic health, you can read our guide on the About Fadi page or take our free 2-minute metabolic health quiz to get personalized recommendations based on your goals.

Metabolic Flexibility and Long-Term Implementation Framework

Whether you are evaluating Unicity from a scientific, regulatory, or business perspective, long-term success with the Feel Great System comes down to daily consistency and metabolic flexibility. Modern dietary patterns characterized by frequent grazing and refined carbohydrates keep circulating insulin levels elevated throughout the day, preventing efficient fat oxidation and contributing to afternoon energy crashes.

By pairing Unimate (a purified yerba mate extract standardized for chlorogenic acids and theobromine) in the morning with Unicity Balance (a patented viscous soluble fiber matrix with plant phytosterols and micronutrients) before your largest meal, the 16:8 time-restricted eating protocol becomes practical and sustainable without extreme calorie deprivation.

Actionable 90-Day Protocol & Compliance Checklist

For customers and independent Unicity distributors alike, following evidence-based best practices ensures a reliable experience:

• The 10-to-15 Minute Pre-Meal Window: Always mix one packet of Balance with 8 to 10 ounces of cold water, shake vigorously in a shaker bottle, and drink immediately 10 to 15 minutes before your main meal so the viscous fiber gel forms properly in the stomach.
• Optimal Daily Hydration: Soluble fiber matrices bind with water in the digestive tract. Aim for at least 64 to 80 ounces of water throughout the day to support digestive comfort and nutrient transport.
• Microbiome Adaptation Period: When increasing prebiotic soluble fiber intake, mild digestive adjustment during the first 5 to 7 days is normal. Pairing the protocol with whole proteins and non-starchy vegetables supports smooth adaptation.
• Objective 90-Day Tracking: Track progress across multiple markers—morning mental clarity, afternoon satiety, waist circumference, and routine lab markers discussed with your physician—backed by the official 90-day money-back guarantee. You can tailor your schedule using our 2-minute metabolic assessment quiz.

Take the free 2-minute quiz · Order the Feel Great System at member pricing · Read the FAQ