How Much Fat Does Orlistat Block? Understanding How It Works

pricing for mounjaro and wegovy weight loss

Orlistat blocks approximately one third of dietary fat absorption, making it a clinically proven weight loss medication. Understanding this mechanism shows exactly why orlistat works for weight management alongside a reduced-calorie, lower-fat diet. Generic orlistat 120mg starts from £16.89, Xenical from £21.50, and Alli 60mg from £28.99. Get 10% off every order with code EDM10. Following an online clinical assessment by UK-licensed prescribers, you can access orlistat through our GPhC-registered Leicester pharmacy with next day delivery. Start your weight management journey today.

  • Blocks approximately one third of dietary fat from being absorbed into your body
  • Works locally in the gut - not absorbed into the bloodstream like stimulants
  • Available as generic orlistat, branded Xenical, or lower-strength Alli with competitive pricing
  • Prescribed online following clinical assessment with next day UK delivery
Start your free consultation

Takes less than 2 minutes to complete, 100% online

usp of our everydaymeds for mounjaro and wegovy
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.

Live Pricing

Our Pricing

offeroral.svg__PID:96a5c4aa-5435-4906-b3cf-f5a48b157d30

Why Understanding Orlistat's Mechanism Matters for Your Purchase

How Orlistat Blocks Fat: The Science That Proves It Works

Orlistat works by inhibiting lipase enzymes in your digestive system. These enzymes normally break down dietary fat so your body can absorb it. When orlistat blocks these enzymes, approximately one third of the fat you eat cannot be digested or absorbed. This unabsorbed fat passes naturally through your body, reducing your calorie intake from dietary fat. This mechanism happens locally in your gut - orlistat isn't absorbed into your bloodstream like stimulant-based treatments, making it a fundamentally different approach to weight management.

Generic Orlistat vs Xenical vs Alli: Same Mechanism, Different Options

All three products work through the same fat-blocking mechanism. Generic orlistat 120mg offers the most cost-effective option at £32.99 for 4 weeks (£29.69 with EDM10). Xenical 120mg provides the branded version at £42.99 for 4 weeks (£38.69 with EDM10). Alli 60mg offers half the strength at £28.99 for 4 weeks (£26.09 with EDM10). The 120mg prescription-strength products block approximately one third of dietary fat, while Alli's lower dose blocks a smaller proportion. Understanding this helps you choose the right strength for your weight management goals.

Why "One Third" Fat Blocking Is Clinically Significant

Blocking approximately one third of dietary fat creates a meaningful calorie deficit without completely preventing fat absorption. If you eat 60g of fat daily, orlistat prevents absorption of roughly 20g, saving approximately 180 calories per day. Over time, this calorie reduction supports weight loss when combined with a reduced-calorie, lower-fat diet. The remaining two thirds of fat is still absorbed normally, ensuring your body gets essential fatty acids while reducing overall calorie intake from fat.

Fast Access Through Online Prescription Process

Understanding how orlistat works gives you confidence to start treatment. Our online clinical assessment takes minutes to complete, and UK-licensed prescribers review your suitability for orlistat, Xenical, or Alli. Once prescribed, your medication is dispensed by our GPhC-registered Leicester pharmacy and delivered with next day tracked shipping. The prescription is included in the price - no separate GP appointment needed. Use code EDM10 for 10% off your order, whether you're a new or returning customer.

Order Today: Put the Science to Work

Now you understand orlistat's fat-blocking mechanism, you can make an informed purchase decision. Choose from 2-week starter supplies (orlistat £16.89, Xenical £21.50) or commit to longer-term treatment with 12-week supplies offering better value (orlistat £95.99, Xenical £128.99, Alli £129.99). All prices include 10% off with EDM10. Start your online consultation now and have your medication delivered tomorrow.

How it
Works?

Group 469326.png__PID:d1d71928-56cc-4f79-bdc7-0a45d0bc6b99
Background (1).png__PID:62282697-4455-4e74-a869-705c14f98b30
Background (3).png__PID:72aeaaf6-bb5b-4dd5-8914-6efdf80a1555

Start your
assessment for
Oral Weight Loss

Start your journey to better health today.

List.svg__PID:b4a5b990-cf62-48e4-ba8f-0a8bffce6cc6

Start your journey to better health today.

Once you complete a short online assessment, you’ll be able to choose your preferred treatment and quantity from a list of safe, medically approved options tailored to you.

Start My Assessment

Returning customer?

Log in to Your Account

Frequently asked questions