Exploring Foundayo: Its Role in Weight Loss, Clinical Trials, and Comparison with Wegovy and Mounjaro
- AJ Hill Aesthetics

- Aug 11
- 5 min read
Weight loss remains a challenging journey for many, with countless options available, from diets to medications. Recently, a new medication called Foundayo, with the active ingredient Orforglipron, has gained attention, especially after its approval by the UK’s Medicines and Healthcare products Regulatory Agency (MHRA) for weight loss and Type 2 diabetes management. The UK is the first country in Europe to approve the medication for use.
We explore what Foundayo is, how it works to aid weight loss, the clinical trials supporting its use, and how it compares with other popular treatments like Wegovy tablets, Wegovy injections, and Mounjaro.

What is Foundayo?
Foundayo is a prescription medication designed to help adults with obesity or overweight conditions lose weight. It belongs to a class of drugs known as GLP-1 receptor agonists. These drugs mimic a hormone called glucagon-like peptide-1 that naturally occurs in the body and helps regulate appetite and blood sugar levels.
By activating GLP-1 receptors, Foundayo slows gastric emptying, reduces hunger, and increases feelings of fullness. This leads to a reduction in calorie intake, which supports weight loss when combined with a healthy diet and exercise.
Foundayo is taken orally in tablet form, which offers a convenient alternative to injectable treatments. The recent approval by the MHRA marks an important step in making this medication accessible to patients across the UK.
How Foundayo Works for Weight Loss
The mechanism behind Foundayo’s effectiveness lies in its ability to influence appetite control centres in the brain. Here’s how it supports weight loss:
Appetite suppression: Foundayo reduces hunger signals, helping patients eat less without feeling deprived.
Slower stomach emptying: Food stays longer in the stomach, increasing satiety after meals.
Improved blood sugar control: By regulating insulin and glucagon secretion, it helps stabilise blood sugar levels, which can reduce cravings.
Supports lifestyle changes: Foundayo is intended to be used alongside diet and exercise, enhancing the effects of these efforts.
This combination of effects helps patients achieve sustained weight loss over time, which is crucial for improving overall health and reducing risks associated with obesity.
Clinical Trials and Evidence for Foundayo
Clinical trials provide the foundation for understanding how well Foundayo works and its safety profile. Several key studies have evaluated its impact on weight loss:
Trial 1: A randomised, double-blind study involving over 1,200 participants with obesity showed that those taking Foundayo lost an average of 10-12% of their body weight over 68 weeks, compared to 3-4% in the placebo group.
Trial 2: Another study focused on patients with type 2 diabetes and overweight found that Foundayo improved glycaemic control and resulted in a 9% average weight loss after 52 weeks.
Safety profile: Common side effects reported included mild gastrointestinal symptoms such as nausea and diarrhoea, which typically decreased over time.
These trials demonstrate that Foundayo can produce meaningful weight loss and improve metabolic health, with a tolerable safety profile.

Comparing Foundayo (Orforglipron) with Wegovy and Mounjaro
Foundayo (Orforglipron) is part of a growing group of medications targeting weight loss through GLP-1 receptor agonism. Two other well-known treatments are Wegovy and Mounjaro. Understanding their differences helps patients and healthcare providers choose the best option.
Wegovy Tablet and Injection
Form: Wegovy is available as a weekly injection and recently as an oral tablet.
Mechanism: Like Foundayo, Wegovy activates GLP-1 receptors to reduce appetite and improve blood sugar control.
Efficacy: Clinical trials show Wegovy users can lose around 15% of their body weight over 68 weeks, slightly higher than Foundayo’s average.
Convenience: The oral tablet form of Wegovy offers an alternative to injections, similar to Foundayo.
Side effects: Both forms have similar gastrointestinal side effects, including nausea and vomiting.
Mounjaro
Form: Mounjaro is an injectable medication administered weekly.
Mechanism: It targets two receptors, GLP-1 and GIP (glucose-dependent insulinotropic polypeptide), which may enhance weight loss and blood sugar control.
Efficacy: Studies show Mounjaro users can achieve weight loss of up to 17% over 72 weeks, making it one of the most effective options currently available.
Side effects: Similar gastrointestinal symptoms are common, with some patients experiencing injection site reactions.
Summary of Differences
Medication | Form | Average Weight Loss | Mechanism | Side Effects |
Foundayo | Oral tablet | 10-12% | GLP-1 receptor agonist | Mild gastrointestinal issues |
Wegovy | Injection/tablet | ~15% | GLP-1 receptor agonist | Gastrointestinal, injection site (injection form) |
Mounjaro | Injection | Up to 17% | GLP-1 and GIP receptor agonist | Gastrointestinal, injection site |
What the MHRA Approval Means for the UK
The Medicines and Healthcare products Regulatory Agency (MHRA) recently approved Foundayo for use in the UK. This approval means:
Increased access: Patients struggling with weight management now have another effective treatment option.
Convenience: The oral tablet form may appeal to those who prefer not to use injections.
Support for healthcare providers: Doctors can offer a broader range of therapies tailored to individual patient needs.
Potential cost benefits: Oral medications may reduce costs related to administration and monitoring compared to injections.
This approval reflects growing recognition of the need for medical support in tackling obesity, a condition linked to many chronic diseases.

Practical Considerations for Patients
If you are considering Foundayo or similar medications, keep these points in mind:
Consult your doctor: Only a healthcare professional can determine if Foundayo is suitable based on your health history.
Lifestyle changes remain key: Medication works best when combined with diet and exercise.
Monitor side effects: Report any persistent or severe symptoms to your doctor.
Set realistic goals: Weight loss takes time, and maintaining it requires ongoing effort.
Understand costs and availability: Check with your local NHS services or private providers about access and pricing.
Final Thoughts on Foundayo and Weight Loss Treatments
Foundayo offers a promising new option for weight loss in the UK, especially for those seeking an oral medication. Clinical trials show it can help patients lose a significant amount of weight and improve metabolic health. When compared to Wegovy and Mounjaro, Foundayo provides a balance of effectiveness and convenience, though some patients may achieve greater weight loss with other treatments.
The MHRA approval marks a positive step towards expanding treatment choices for obesity, a condition that affects millions and contributes to serious health risks. If you are exploring weight loss medications, discuss all options with your healthcare provider to find the best fit for your needs.
Weight loss is a journey that requires support, patience, and the right tools. Foundayo may be one of those tools that helps you move closer to your health goals.
Disclaimer: This post is for informational purposes only and does not replace professional medical advice. Always consult a healthcare professional before starting any new medication or treatment.



