Average weight loss of 12–15%¹
Nutrient-rich meal replacements in 8 delicious flavours
Designed and led by UK weight loss experts
Complete weight loss programme with online fitness plan and 24/7 support
The meal replacement weight loss programme that works
Have you tried to lose weight with meal replacements, but never achieved the results you wanted?
SemaPen is different. When you join our meal replacement programme, you unlock tailored, expert support to help you leap every hurdle and celebrate every success.
No more directionless diet plans. No more empty promises. With SemaPen, you get a complete 12-month weight loss programme designed by UK specialists and supported by science. That includes a 10-month online fitness plan and our unique SemaPen Academy, where you can learn healthy habits that last a lifetime.
And the results are real. As a SemaPen subscriber, you can expect weight loss of around 12% to 15%.¹
Built by UK experts
The SemaHealth Meal Replacement Programme is designed and led by real UK weight loss specialists.
Tasty, filling and nutritious
Forget bland, bulked-up shakes. These are real replacement meals – nutritious, satisfying and packed with flavour.
Tailored, one-to-one support
Unlock advice that's tuned for success. As a SemaPen subscriber, you enjoy face-to-face digital appointments with our expert dietitians.
Personalised fitness plan
You'll work with a personal physiotherapist through a 10-month online exercise programme. They'll craft a fitness plan that's built around you and changes based on your needs.
Enhanced by smart technology
When you sign up for the SemaHealth Meal Replacement Programme, you get a Withings Body scale worth £60. This connects to the cloud to share your progress with our team, so you'll enjoy real-time weight tracking and advice.
And don't forget: tailored support is only a tap away. As a subscriber, you can access expert guidance, healthy recipes and exclusive Academy lessons through the SemaPen app.
Packed with goodness. Backed by science.
Nutritionally complete in 4 portions per day
19–22g of protein per portion
3.3–4.6g of fibre per portion
Suitable for vegetarians (including the chicken-flavour soup)
All products are halal
All products are gluten-free
Seriously satisfying flavours
Build your own meal replacement menu
Sweet flavours
- Chocolate shake
- Strawberry shake
- Banana shake
- Vanilla shake
- Mango shake
- Latte-flavour shake
- Mango shake (plant-based)
- Red berry shake (plant-based)
Savoury flavours
- Vegetable soup (plant-based option available)
- Chicken-flavour soup
The SemaPen app
Your daily weight loss companion.
We believe the best meal replacement programmes for weight loss combine human expertise with cutting-edge digital technology.
That's why we created the SemaPen app. It's an all-in-one weight loss companion built exclusively for SemaPen and SemaHealth subscribers.
Through the app, you can connect with our experts, track your progress and access exclusive tips and recipes. Just what you need to stay motivated and stay on target.
My health dashboard
All your achievements, all in one place. Your dashboard connects with your Withings® Body scale, so you can track your progress at a glance.
Motivational check-ins
Consider it your pocket weight loss buddy. The app checks in on your weight, mood and more – and tells you what to do if something's up.
Advice at your fingertips
All SemaPen subscribers get instant access to our dedicated support team. Need advice? Got a question? Just tap and chat. Easy.
Exclusive content
Learn healthy habits that last a lifetime. When you join the SemaPen programme, you unlock exclusive Academy lessons, healthy recipes and more.
How it works
Ready to start your intensive meal replacement shake diet plan?
We've partnered with Altralife to bring you delicious, nutrient-rich meal replacements plus a full package of holistic support from our weight loss experts. Here's how it works.
1. Sample your starter pack
First, we'll send the Altralife Starter Pack, so you can sample each delicious flavour – including sweet shakes and savoury soups. That means you can plan your own menu to suit your tastes.
2. Choose your monthly menu
Once you've chosen your favourite flavours, you order your plan monthly. You can vary your flavours month by month, and choose four flavour combinations per month.
3. Enjoy four shakes a day for three months
For the first three months of your weight loss journey, you'll swap all your food intake for four tasty meal replacement shakes or soups, spread equally over the day. Each flavour pouch comes with a scoop for easy measuring and mixing.
4. Lose 12-15% of your weight over 12 months
After three months, you'll gradually reintroduce regular meals with support from our qualified dietitians. Over the 12-month programme, you can expect to lose around 12 to 15% of your body weight.¹
Tailored, face-to-face support from the start
Nothing gets results like science-backed support from real experts. That's why your SemaHealth programme includes face-to-face digital consultations with a SemaHealth dietitian.
For the first three months, you'll meet every fortnight via video chat or telephone call. They'll be on hand to offer tailored advice based on your progress, goals and unique challenges.
And don't forget: your SemaPen support team will be there every step of the way. We'll prompt you with relevant support and advice between our calls. And we'll be in touch more regularly if the remote monitoring suggests you might benefit from an extra check-in.
Ongoing advice and nutrition support
Finished your shakes? Your journey's only just beginning. Our specialists will continue to offer bespoke support for a full 12 months. That includes ongoing monthly consultations with your dietitian.
With their expertise on your side, you can expect to lose
12% to 15% of your weight¹
if you stick with the 12-month programme.
From month four onwards, we'll also send a monthly package of vitamins and minerals. These are specially formulated to support nutritional balance when losing weight.
What's included in the SemaHealth Meal Replacement Programme?
Total meal replacement weight loss programme (3 months)
Supported food reintroduction phase (9 months)
Face-to-face support from a qualified dietitian (fortnightly for 3 months, then monthly)
Personalised online fitness programme with smart fitness tracking (10 months)
Withings® Body scale (tracks your weight in the cloud)
Tailored vitamins for weight loss (months 4–12)
Dedicated customer service team
Exclusive SemaPen Academy content
Health dashboard to track progress
Calorie/nutrition tracker*
Weight monitoring and advice
Upgraded Withings Body Smart scale (tracks weight and body composition)
Home blood test for common health problems
Female sex hormone screening
Face-to-face consultation with a clinical psychologist
Price
PLAN A
£699 One-time payment
£35.99 per month
For months 4–12
TOTAL COST
£1,022.91
SAVE £237
PLAN B
£312 per month
For first 3 months
£35.99 per month
For months 4–12
TOTAL COST
£1,259.91
Meet your experts
SemaPen is backed by Phoenix Health, the only private bariatric clinic trusted by the NHS for specialist treatment. Our team has supported people with effective weight loss for more than 20 years.
How to join the SemaHealth Meal Replacement Programme
1. Download the app
The SemaPen app is your daily weight loss companion. To get started, download the app from Google Play or the iOS App Store.
2. Take your consultation
Your journey begins with a simple digital consultation. This is so our experts can recommend the right weight loss programme for your unique needs.
3. Success starts today
All done! You've unlocked instant access to the SemaPen app and all its handy features. Your meal replacement shakes will arrive by post promptly.
