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Appetite and blood sugar
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Causes of weight gain

Weight gain can be caused by a number of factors but the most common one is an unhealthy lifestyle. The direct relationship between the number of calories consumed and weight gained is indisputable, with poor diet and lack of exercise being the main contributory factors for weight gain in the UK. There are other factors that can contribute to weight gain, certain genetic conditions, for example, may prevent a person from feeling full or people affected by other health conditions may have to rely on medications causing weight gain as a side effect.

Do I need to lose weight?

Many people are uncertain whether they are actually overweight and, subsequently, are unsure as to whether or not they need to begin to lose weight. To determine if a person is at risk, medical professionals use the body mass index (BMI), which determines a person's ratio between height and weight. The BMI is used to determine whether a person is overweight and is a good way of calculating whether a person is at risk of health complications that can sometimes occur.

A BMI of between 25 and 30 would mean that you are overweight, whilst a BMI of over 30 is an indication for obesity. Exceptions can be found in some people, for example in women losing weight after a pregnancy or in athletes with high muscle concentration, but generally, people with a high BMI should be looking for ways to safely lose weight. To calculate your BMI, use our BMI calculator.

How do I lose weight safely?

It is important that you make sure that your weight loss is safe and ideally you would want it to be sustainable too so that your health can improve over time rather than just for the short term. Traditional lifestyle weight loss methods are the most effective and healthcare professionals most often recommend diet and exercise first. However if you find that you are not achieving the results that are needed, prescription medication like Xenical (Orlistat) or Saxenda (Liraglutide) can be an effective aid in weight loss. In all cases it is important that you complete an online or face-to-face consultation with a medical professional to ensure that the weight loss aid you choose is suitable and safe for you.

Choosing the right weight loss treatment

It is important that you understand the causes of your weight gain before deciding on which course of action to take. If you are unsure how to tackle weight loss, you can seek support from your doctor or a nutritionist, who will advise on a suitable diet and exercise plan. Eating a healthy, well-balanced and varied diet is key to achieving a healthy lifestyle. Regular exercise will help you control and maintain a healthy weight.

If you are struggling to reach your weight loss goals through diet and exercise alone, there are certain prescription treatments available which may support your efforts. The prescription treatment Xenical stops the absorption of part of the fat you consume with your meals while Saxenda works by reducing the appetite. These medications may help you lose weight more efficiently, but it is important to remember that weight loss treatments should best used in addition to proper lifestyle changes – the most important and effective weight loss methods involve exercise and healthy eating.

In extreme cases, your doctor may recommend a surgical procedure such as a gastric band to support weight loss in severely obese patients. However, this is normally considered a last measure and should only be considered if your weight has had a serious impact on your health and all other weight loss methods have failed.

Can I purchase prescription weight loss treatment online?

If you have struggled to lose weight whilst dieting and exercising then it may be safe and suitable for you to purchase prescription weight loss treatment online. To determine whether Xenical with the active ingredient Orlistat or Saxenda with the active ingredient Liraglutide are suitable for you to purchase, simply complete one of our free online consultations. Your consultation will be reviewed by one of our registered doctors and they will prescribe the medication if they believe it is safe to do so. The doctor then passes the prescription on to our pharmacy where your treatment will be packaged discreetly and dispatched with express shipping for next day delivery.

Buy weight loss treatment online

If you have struggled to lose weight through diet and exercise alone, then it may be safe and suitable for you to purchase prescription weight loss treatment online. At 121doc, we have three treatment options available: Xenical (Orlistat), Saxenda and Mysimba.

To purchase, simply complete one of our free online consultations which will be reviewed by one of our registered doctors. If you are suitable for treatment, the doctor will then pass the prescription on to our pharmacy where your medication will be packaged discreetly and dispatched with next-day delivery.

Medical review byDr. Caroline FontanaLast review 29 April 2026
Dr. Caroline Fontana

FAQs

What is included in the online consultation?
Will a doctor review my consultation?
What happens after I submit my order?
What services are included with my order?
Is the price all-inclusive?
What are my delivery options?
Is it safe to buy prescription medication online?
Is this service discreet?
What is included in the online consultation?

Our online consultations are in the format of short medical questionnaires. You will be asked general questions about your health and medical history, as well as specific medical questions relevant to the treatment you have chosen. We will also ask you for your payment and delivery details to complete the order.

Online consultations take no longer than 5 minutes to complete. All questions are necessary when issuing prescription medicines. It means that our doctors can make sure the treatment is safe and right for you.

Will a doctor review my consultation?

Yes, it is a legal requirement that all online consultations are reviewed by a registered doctor. This is to make sure the chosen treatment is safe and right for you to take. All personal information is stored securely and confidentially.

Please note, all orders are subject to doctor approval, and we cannot guarantee that your order will be approved.

What happens after I submit my order?

Your online consultation will be sent directly to our medical team, where it will be reviewed by on of our in-house doctors.

If a doctor approves you for treatment, they will issue a prescription. Your prescription will then be forwarded to our pharmacist, where you medication will be dispensed and dispatched for delivery.

What services are included with my order?

Every order includes:

  • Free consultation - your consultation will be personally reviewed by one of our registered doctors.
  • Free prescription - a doctor will issue you a prescription if approved for treatment.
  • Free delivery - we provide free express delivery across Europe, you should receive your order in 1-2 working days.
Is the price all-inclusive?

Yes, our service is all-inclusive and there are no hidden fees. All 121doc orders include a free online consultation, a free prescription and free express delivery.

What are my delivery options?

We offer several delivery options at no extra charge:

  • Next-day delivery
  • UPS Access Point - convenient parcel drop-off and collection near your home or work address
  • Nominated-day delivery - choose the most convenient day for delivery

All these options can be tracked and require a signature on delivery. If you are not in, a friend or relative can sign in your place.

Is it safe to buy prescription medication online?

It is safe to buy prescription medications online from genuine and reputable healthcare providers, like 121doc.

Our medical staff and facilities are registered with the relevant medical governing bodies. We also ensure your data is protected by adhering to European data privacy laws.

You can learn more about our certifications here.

Is this service discreet?

Our patients’ privacy is of utmost importance. All your medical information is securely stored and only viewed by our doctors. We do not share your details with third-parties. We are also closely adhere to data privacy laws.

All orders will only show on invoices, bank statements, etc. as ‘HHC Ltd’.