What Does Semaglutide and Tirzepatide Do to Your Body?
- Angela Yender

- Oct 25, 2024
- 4 min read
Updated: Oct 2

GLP-1 (glucagon-like peptide-1) medications like Semaglutide and Tirzepatide are transforming the way we approach weight loss and diabetes management. These medications target hormonal pathways in the body to help regulate blood sugar levels and reduce body weight, offering a new avenue for people struggling with obesity or type 2 diabetes. But what exactly do these drugs do to your body, and what can you expect during your journey with them? Let’s break it down.
How Do GLP-1 Medications Work?
Semaglutide and Tirzepatide mimic or enhance the effects of GLP-1, a naturally occurring hormone that plays a significant role in regulating blood sugar levels, appetite, and digestion. GLP-1 is released after you eat, stimulating insulin secretion while simultaneously suppressing glucagon (a hormone that raises blood sugar levels). By enhancing GLP-1 activity, these medications help keep blood sugar levels stable and promote weight loss.
Semaglutide is a GLP-1 receptor agonist that increases the action of GLP-1 in the body, while Tirzepatide goes a step further, combining GLP-1 agonist activity with GIP (glucose-dependent insulinotropic polypeptide) receptor agonist effects. GIP is another hormone that influences insulin secretion, and its inclusion amplifies the benefits seen with traditional GLP-1 medications, potentially leading to greater weight loss and improved metabolic outcomes.
Effects on the Body
Appetite Suppression: One of the primary ways Semaglutide and Tirzepatide help with weight loss is by reducing appetite. These medications work on areas of the brain that regulate hunger, such as the hypothalamus, leading to a decrease in cravings and a feeling of fullness with smaller amounts of food. For many people, this can result in reduced calorie intake and subsequent weight loss over time.
Slower Gastric Emptying: GLP-1 medications delay the rate at which food leaves the stomach. This effect, known as slower gastric emptying, helps you feel fuller for longer periods, further reducing the likelihood of overeating. It also means that blood sugar levels rise more gradually after meals, reducing spikes that can occur after eating.
Enhanced Insulin Sensitivity: These drugs improve how the body responds to insulin, the hormone that helps cells absorb glucose from the bloodstream. Enhanced insulin sensitivity means that your body is better able to regulate blood sugar levels, which is particularly beneficial for people with type 2 diabetes.
Reduced Glucagon Secretion: By lowering glucagon levels, Semaglutide and Tirzepatide help prevent the liver from releasing too much sugar into the bloodstream. This helps stabilize blood sugar levels, especially in those with type 2 diabetes, who often experience high fasting blood sugar.
Weight Loss Benefits: In clinical trials, both Semaglutide and Tirzepatide have shown significant weight loss effects. On average, patients can expect to lose anywhere from 10-20% of their body weight over time, depending on the dosage and individual response. Tirzepatide has shown slightly greater weight loss results due to its dual action on both GLP-1 and GIP receptors.
What to Expect During Your Weight Loss Journey
Gradual Dosage Increases: When starting GLP-1 medications, the dosage is typically increased gradually to help minimize potential side effects. Starting with a lower dose allows the body to adapt, and the dose is increased based on the individual's response and tolerance. This titration helps reduce gastrointestinal issues, which are the most common side effects.
Potential Side Effects: Common side effects include nausea, vomiting, diarrhea, and constipation. These are typically mild and tend to decrease as the body gets used to the medication. They can be avoided by eating clean, nutritious, smaller meals, increasing protein intake and avoid high-fat, processed or spicy foods.
Changes in Appetite and Food Preferences: Many users report a change in their cravings and food preferences, often finding that they no longer desire high-calorie or sugary foods as much. This shift can help reinforce healthier eating habits and make long-term weight maintenance easier.
Steady Weight Loss: Unlike some other weight loss methods that result in rapid weight loss, GLP-1 medications usually promote a steady, sustainable loss of weight. This gradual approach allows for a more balanced lifestyle and reduces the likelihood of regaining weight.
Blood Sugar Monitoring: If you have diabetes, you may need to monitor your blood sugar levels more closely, especially if you are on other medications that lower blood sugar. The combination of GLP-1 medication with other diabetes treatments can sometimes cause hypoglycemia, though this risk is relatively low with Semaglutide and Tirzepatide alone.
Beyond Weight Loss: Additional Health Benefits
Using Semaglutide or Tirzepatide may offer other health benefits beyond just weight reduction:
Improved Cardiovascular Health: Research has shown that GLP-1 medications can help lower blood pressure and cholesterol levels, reducing the risk of heart disease.
Better Sleep and Reduced Sleep Apnea: Weight loss can improve sleep quality and alleviate conditions like sleep apnea, leading to more restful nights.
Enhanced Mobility and Joint Health: With significant weight loss, the stress on joints is reduced, which may improve mobility and reduce pain from conditions such as osteoarthritis.
Who Can Benefit from GLP-1 Medications?
GLP-1 medications are generally prescribed for people who have:
Type 2 diabetes and need help managing blood sugar levels
Obesity (BMI ≥ 30) or overweight (BMI ≥ 27) with weight-related health conditions like high blood pressure or cholesterol
It's important to note that these medications should be part of a comprehensive weight management program, which includes a balanced diet and regular physical activity.
Conclusion
Semaglutide and Tirzepatide represent a promising approach to weight loss and diabetes management. By regulating appetite, improving insulin sensitivity, and promoting steady weight reduction, these GLP-1 medications can help individuals achieve their health goals. My recommended online weight loss clinic is this one here. Use my name “Angela Yender” for a discount.
It’s essential to understand the possible side effects. They’re usually related to the dosage you’re taking or the lack of a healthy lifestyle approach. A great reason to work with a Health Coach to monitor progress! With the right approach, these medications, alongside a change to your healthy habits, can be a game-changer for those struggling with weight or blood sugar management.
As a GLP-1 Health Coach, I empower women to modify past behaviors and have incredible results in maintenance. If you feel overwhelmed with navigating your GLP-1 journey and want to set yourself up for long-lasting weight loss results, let's hop on a Discovery Call today!



