How Much Fat Does Orlistat 120mg Block?

pricing for mounjaro and wegovy weight loss

Orlistat 120mg works by blocking approximately one third of dietary fat absorption in your digestive system. This proven mechanism helps reduce calorie intake from fat as part of a structured weight management programme. Understanding how orlistat works demonstrates why it's an effective prescription weight loss medication when used alongside a reduced-calorie, lower-fat diet. At EverydayMeds, generic orlistat 120mg costs just £29.69 for a 4-week supply with code EDM10. Following an online clinical assessment by our UK-licensed prescribers, you could start your weight management journey today with next-day delivery across the UK.

  • Blocks approximately one third of dietary fat - scientifically proven mechanism
  • Works locally in your gut, not absorbed into bloodstream
  • From £15.20 for 2-week supply with 10% off code EDM10
  • Online prescription service - no GP appointment needed
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pricing for mounjaro and wegovy weight loss

*Pricing shown in some areas of this page may not be up to date. Please refer to the “Our Pricing Table” or the price shown after your consultation for the latest live pricing.

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Why Orlistat's Fat-Blocking Mechanism Works

How Orlistat 120mg Blocks Dietary Fat

Orlistat works by inhibiting lipase enzymes in your digestive system that normally break down dietary fat. When these enzymes are blocked, approximately one third of the fat you eat cannot be digested or absorbed into your body. This unabsorbed fat passes naturally through your digestive system, reducing the total calories your body takes in from meals. This mechanism makes orlistat an effective tool for weight management when combined with a reduced-calorie, lower-fat diet.

The Science Behind Fat Blocking

Unlike appetite suppressants that affect your brain, orlistat acts locally in your gut. Each 120mg capsule taken with meals blocks the same proportion of fat - approximately one third - regardless of whether you choose generic orlistat (from £29.69 for 4 weeks with EDM10) or branded Xenical (from £38.69 for 4 weeks with EDM10). The active ingredient and mechanism are identical, making generic orlistat excellent value for effective fat blocking.

What This Means for Your Weight Management

By blocking approximately one third of dietary fat absorption, orlistat can significantly reduce calorie intake from fat-rich foods. For example, if a meal contains 15g of fat (135 calories), orlistat may block around 5g (45 calories) from being absorbed. Over time, this calorie reduction supports weight loss alongside your reduced-calorie diet and increased physical activity. The key is consistency - taking orlistat 120mg three times daily with each main meal containing fat.

Why Understanding the Mechanism Matters

Knowing that orlistat blocks approximately one third of dietary fat helps you use it effectively. This mechanism explains why keeping meals lower in fat (around 15g per meal) reduces side effects while maintaining effectiveness. It also shows why orlistat works best as part of a comprehensive weight management approach including dietary changes and exercise, rather than as a standalone solution.

Start Your Fat-Blocking Treatment Today

Now you understand how orlistat's fat-blocking mechanism works, you can make an informed decision about treatment. EverydayMeds offers the full range: generic orlistat 120mg from £15.20 for 2 weeks, branded Xenical from £19.35 for 2 weeks, and lower-strength Alli 60mg from £26.09 for 4 weeks (all with code EDM10). Following an online clinical assessment by our UK-licensed prescribers, your treatment can be dispensed by our GPhC-registered pharmacy and delivered discreetly to your address with next-day delivery. Complete your consultation today to start blocking approximately one third of dietary fat and supporting your weight management goals.

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