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Semaglutide — Key Benefits

• Significant and sustained weight loss (15–20% body weight)
• Reduces appetite and food cravings
• Improves blood sugar regulation
• Cardiovascular risk reduction
• Slows gastric emptying

Tirzepatide — Key Benefits

• Up to 20.9% body weight loss in 72 weeks (SURMOUNT-1)
• Average of 52 lbs lost at the highest dose
• Significant A1C reduction (up to 2.3%) in type 2 diabetes
• Dual GIP + GLP-1 receptor activation for synergistic effect
• Reduces appetite, cravings, and caloric intake

Semaglutide — Side Effects

• Nausea (very common, especially initially)
• Vomiting
• Diarrhea or constipation
• Potential pancreatitis (rare)
• Thyroid C-cell tumors (theoretical, based on animal studies)

Tirzepatide — Side Effects

• Nausea (most common, especially during dose increases)
• Diarrhea
• Vomiting
• Constipation
• Decreased appetite

Semaglutide — How It Works

Semaglutide activates GLP-1 receptors in three key places. In your brain, it dials down appetite and cravings. In your pancreas, it helps release insulin when blood sugar is high (and stops the hormone that raises blood sugar). In your stomach, it slows down how fast food moves through, which keeps you feeling full longer. All three effects work together to reduce how much you eat and how your body handles the calories you do consume.

Tirzepatide — How It Works

Tirzepatide works on two separate receptor systems simultaneously. The GLP-1 receptor activation is similar to Semaglutide: it tells your brain you are full, slows gastric emptying, and helps your pancreas release insulin when blood sugar rises. The GIP receptor activation is what makes Tirzepatide unique. GIP works directly on fat tissue to reduce fat storage, improves how efficiently your body uses insulin, and appears to amplify the appetite-suppressing effects of GLP-1. The combination produces a synergistic effect — the two signals together are more powerful than either one alone. This is why Tirzepatide consistently outperformed Semaglutide in head-to-head comparisons (SURMOUNT-5 trial: 47% more weight loss vs Semaglutide 2.4mg).