10 Best Weight Gainer Tablets For Skinny People in The UK

Last updated on 26/08/2025

Advertising disclosure

Kinetica Sports OatGain Weight Gainer - Raspberry Yoghurt Flavour | 630 Cal, 46g Protein & 82g Carbs/Serve, 15 Servings/2.4Kg | Optimum Grass Fed Protein Supplement | High Calorie & Easy Mixability

Free Shipping

Why We Love It

Unrivalled taste and aroma.
Easy to mix consistency.
Boost energy, repair muscles.

Main Highlights

Irresistible Flavour for Maximum Enjoyment: Kinetica Sports OatGain Mass Gainer comes in two mouthwatering flavours: Chocolate Caramel Nut and Raspberry Yoghurt. Each delivers a rich, satisfying taste and aroma, making it easy and enjoyable to fuel your body with extra calories and nutrients to support high training loads.
Smooth & Easy Mixability: Experience hassle-free mixing with Kinetica Sports OatGain Weight Gainer. Whether you prefer water, milk, or milk alternatives, our mass gainer powder mixes easily with milk or water for a high protein, high calorie shake in seconds.
High-Calorie Fuel for Muscle & Energy: Each serving of Kinetica Sports OatGain mass gainer provides 600+ calories and 46g of protein to help you gain weight, increase overall muscle mass and replenish your energy stores, making it ideal for intense workouts and recovery. Kinetica Sports Oatgain mass gainer contains only 6.4g of sugar per serving.
Convenient & Versatile for Any Lifestyle: Kinetica OatGain weight gainer is perfect for anyone looking to intake a high volume of calories for weight gain or energy regeneration. It’s suitable for vegetarians and can be used as a post-workout shake, meal replacement, or mid-day snack. Simply mix one serving with water, milk, or your preferred beverage for a quick and nutritious option.
Quality Assured & Batch-Tested for Safety: Kinetica Sports OatGain mass gainer is batch-tested under the Informed-Sport testing program to ensure that every batch complies with WADA’s high standards. You can trust that OatGain is free from banned substances and made with quality ingredients to fuel your training safely and effectively.

Kinetica Sports OatGain Weight Gainer - Chocolate Caramel Flavour | 620 Cal, 47g Protein & 78g Carbs/Serve, 15 Serving/2.4Kg | Optimum Grass Fed Protein Supplement | High Calorie & Easy Mixability

Free Shipping

Why We Love It

Delicious Chocolate Caramel Nut.
Easy to mix.
Repairs muscles, replenishes energy.

Main Highlights

Irresistible Flavour for Maximum Enjoyment: Kinetica Sports OatGain Mass Gainer comes in two mouthwatering flavours: Chocolate Caramel Nut and Raspberry Yoghurt. Each delivers a rich, satisfying taste and aroma, making it easy and enjoyable to fuel your body with extra calories and nutrients to support high training loads.
Smooth & Easy Mixability: Experience hassle-free mixing with Kinetica Sports OatGain Weight Gainer. Whether you prefer water, milk, or milk alternatives, our mass gainer powder mixes easily with milk or water for a high protein, high calorie shake in seconds.
High-Calorie Fuel for Muscle & Energy: Each serving of Kinetica Sports OatGain mass gainer provides 600+ calories and 46g of protein to help you gain weight, increase overall muscle mass and replenish your energy stores, making it ideal for intense workouts and recovery. Kinetica Sports Oatgain mass gainer contains only 6.4g of sugar per serving.
Convenient & Versatile for Any Lifestyle: Kinetica OatGain weight gainer is perfect for anyone looking to intake a high volume of calories for weight gain or energy regeneration. It’s suitable for vegetarians and can be used as a post-workout shake, meal replacement, or mid-day snack. Simply mix one serving with water, milk, or your preferred beverage for a quick and nutritious option.
Quality Assured & Batch-Tested for Safety: Kinetica Sports OatGain mass gainer is batch-tested under the Informed-Sport testing program to ensure that every batch complies with WADA’s high standards. You can trust that OatGain is free from banned substances and made with quality ingredients to fuel your training safely and effectively.

Warrior Mass Protein Powder – 5kg – Serious Mass Gainer – High Calorie, Weight Gain Supplement – 61g of Protein, 18 Servings, 1000+ Calories Shake, Supports Muscle Growth (Double Chocolate, 5kg)

7% OffFree Shipping

Why We Love It

Supports muscle, strength, and gains.
Six tasty protein shake flavours.
Blend of fast, slow protein.

Main Highlights

WARRIOR MASS – Has been designed to support muscle, strength, and mass gains. If you're an MMA fighter, boxer, or rugby player, or train aggressively to get REAL results from your body, Warrior MASS is for you
61g PROTEIN PER SERVING TO BUILD MUSCLE MASS – A convenient supplement to meet your daily protein needs. Our Warrior MASS protein shake is packed with over 1000+ calories
6 FLAVOURS – Warrior MASS comes in 6 tasty flavours: Double Chocolate, White Chocolate, Banana Crème, Vanilla Cheesecake, Salted Caramel, and Strawberry Crème.
5.04KG & 18 SERVINGS – An excellent value mass/weight gainer. Our recommended serving size is 2 rounded scoops (280g), and we suggest mixing it with 300 ml of water.
PROTEIN BLEND – Made with Whey Protein Concentrate to provide an instant protein injection and Micellar Casein, which digests slowly over 8 hours. It’s Ideal post-workout, ideal between meals, and an exceptional addition of clean food support to your daily diet. Warrior MASS has got your back.

Reflex Nutrition Instant Mass Heavyweight - Mass Gainer - Over 1000 Kcal per Serving, 60g Protein, Creatine - High Calorie Post Workout or Before Bed Protein Shake (Chocolate Perfection, 2 kg)

Why We Love It

Promotes muscle maintenance overnight.
Guarantees premium quality ingredients.
Suitable for various dietary needs.

Main Highlights

Engineered for Gains: This seamless protein shake mix is specifically formulated to accelerate muscle and weight gains and improve post-workout recovery, enhancing overall workout performance for the dedicated, hard gainer and serious athlete alike
Excellent Nutrition Profile: Packed with quality ingredients, each protein shake serving delivers over 1000 kcals, 200g of complex carbohydrates, 60g of muscle gain protein, critical EAAs, creatine, 18 vitamins and minerals (B12, B6, C, Iron, Zinc)
Outstanding Taste Sensation: Our Chocolate Perfection mass gainer flavour isn't just a treat for your taste buds - it's a deliciously creamy escape into indulgence with every sip, all while you are fueling your body for mass gain and muscle recovery
Optimal Timing for Maximum Impact: Consume Instant Mass Heavyweight high protein shake between meals for a positive nitrogen balance, 20-30 minutes post workout for best results or 45-60 minutes before sleep to aid overnight muscle maintenance
Trusted Quality Assurance: Reflex Nutrition's promise to quality means whey protein powder from grass-fed cows - Protein Sources are Glutamine Peptides, Whey Protein Concentrate, Milk Protein, Hydrolysed Whey Protein
Produced in an Informed Sport Registered Facility - Suitable for vegetarians and Halal certified - Zero added sugars, artificial colors, or soy protein, assuring a conscientious choice of weight gainer for your muscle-building objectives

Fit Lab - Smart Weighto Management, Food Supplement - 90 Capsules - Vegan, Halal and Vegetarian Supplements for Women and Men - 45 Days Supply - Gym Essentials

7% OffFree Shipping

Why We Love It

Scientifically formulated for effectiveness.
Top purity ingredients used.
Satisfaction guaranteed for 365 days.

Main Highlights

DAILY SUPPLEMENT : Fit Lab combines selected ingredients in measured amounts, produced by our team with attention to detail. Two capsules a day, taken with water, simple, straightforward, and easy to fit into your routine.
WITH CAFFEINE AND GREEN TEA EXTRACT: Includes naturally sourced caffeine and green tea extract, often chosen by people looking for support with focus and motivation throughout the day. A popular pick for early starts or active lifestyles.
MADE IN THE UK: Proudly produced in the UK in line with HACCP code of practice. Each batch is lab-tested, and our formula is suitable for vegans, vegetarians and those following a Halal diet.
FREE FROM COMMON ALLERGENS: Our capsules are free from pork, beef, eggs, nuts, fish, lactose, cereals, celery, GMOs and artificial preservatives. Made without unnecessary additives, using ingredients selected for quality and suitability.
HOW TO USE : Adults start with 1 capsule in the morning for the first 5 days, then increase to 2 capsules daily, one in the morning and one mid-afternoon, with water. Do not exceed the daily dose and avoid taking within 6 hours of bedtime. Best taken with food if you’re prone to reflux.

The Bulk Protein Company

The Bulk Protein Company, SERIOUS Gainz - Whey Protein Powder - Weight Gain, Mass Gainer - 30g Protein Powders (Cookie & Cream, 5kg)

25% OffFree Shipping

Why We Love It

Promotes muscle growth and recovery.
Assists in mass and weight gain.
Offers diverse, enjoyable flavors.

Main Highlights

30g PROTEIN PER SERVING TO HELP BUILD MUSCLE - Protein Isolate powder that contains 30 grams of high quality Protein per serving. A convenient and easy way to help you meet your daily protein needs. Use after training to quickly heal micro-tears in muscle tissues, which speeds up recovery, reduces muscle soreness and leads to stronger and bigger muscles over time
PUT ON SIZE AND GAIN MASS - With 468 lean calories per serving, Serious Gainz protein powder is ideal when BULKING. Use as part of a balanced diet to help add body mass and increase weight gain. Contains 81g of carbohydrates which will help your body absorb the protein within, turning it into muscle mass to help towards improving your overall body composition
PROTEIN SHAKE THAT TASTES GREAT - Add 3 scoops of powder to 400-500ml of water or milk and mix well to create a great tasting Protein Shake! Can also be enjoyed in smoothies, with oats or when added to a pancake mix. Protein powders don't have to be boring, so we made 10 different flavours for you to choose from
HIGH QUALITY WHEY PROTEIN - Whey digests quickly and is rich in branched-chain amino acids (BCAAs). One of these BCAAs, Leucine, plays a major role in promoting muscle growth and recovery after resistance and endurance exercise. When amino acids are digested and absorbed into your bloodstream, they become available for muscle protein synthesis, which is the creation of new muscle
EXCELLENT VALUE 5kg TUB WITH 40 SERVINGS - With up to a month's supply of high quality protein powder, we offer great value for your money compared with other brands. We recommend one serving per day to consistently meet your daily protein goal. Consume immediately post-training on workout days and between breakfast and lunch on non-workout days. Comes with scooper for measurements

Boditronics Mass Attack Heavyweight Mass Gainer Powder for High Protein and High-Calorie Weight Gainer Protein Powder with 5g Creatine, BCAA, Glutamine and Beta Alanine (Vanilla Ice Cream)

Why We Love It

Contains 60g protein serving.
No artificial chemicals added.
Four delicious flavor options.

Main Highlights

💪𝟔𝟎 𝐆𝐑𝐀𝐌𝐒 𝐏𝐑𝐎𝐓𝐄𝐈𝐍 𝐏𝐄𝐑 𝐒𝐄𝐑𝐕𝐈𝐍𝐆 - Boditronics Mass Attack Heavyweight is a high-calorie weight gainer which consists of 60 grams of protein per serving and boasts a huge 214g carbohydrates making it an is solution to high quality mass gain.
✔️𝟓𝐆 𝐂𝐑𝐄𝐀𝐓𝐈𝐍𝐄 - Mass Attack Heavy weight has 5 grams of creatine per serving, which helps in developing strength and power. It also helps in reducing muscle soreness and even speeds up recovery after intense training or workout. It is specially developed for athletes and anyone looking to add muscle mass.
🏋️‍♂️𝐒𝐔𝐈𝐓𝐀𝐁𝐋𝐄 𝐖𝐄𝐈𝐆𝐇𝐓 𝐆𝐀𝐈𝐍𝐄𝐑 𝐅𝐎𝐑 𝐒𝐊𝐈𝐍𝐍𝐘 𝐏𝐄𝐎𝐏𝐋𝐄 ?- Boditronics Mass Attack mixes in to a light shake making it easy to consume and light on your stomach. Just shake it and drink it. Making the Boditronics Mass gainer range some of the most highly recommended muscle building supplements.
⚡𝐍𝐎 𝐀𝐃𝐃𝐄𝐃 𝐀𝐑𝐓𝐈𝐅𝐈𝐂𝐈𝐀𝐋 𝐅𝐋𝐀𝐕𝐎𝐔𝐑𝐒 - Boditronics Mass Attack Heavy weight is a weight gainer which, does not contain artificial colours, flavours, preservatives, or sweeteners. It is a pure product and is completely chemical-free. Giving you confidence to train with the knowledge there are no chemicals in it that can be harmful to your body.
⚡𝟒 𝐅𝐋𝐀𝐕𝐎𝐔𝐑𝐒 - Boditronics heavyweight gainer comes in 4 delicious flavors. Banana Cream, Milk Chocolate, Strawberries and cream, and Vanilla Ice Cream. Just add 60g of powder and mix with water or your choice of milk for a tasty easy to consume Mass Building shake.

Anabolic Weight Gainer (XXXL) Capsules - Ultimate Formula for More Muscle, More Mass

Free Shipping

Why We Love It

Build muscle mass quickly.
High-strength pharma-grade ingredients.
Enhances strength and power.

Main Highlights

If you want to start packing on as much serious muscle as is humanly possible (legally!), then our ANABOLIC GROWTH capsules are for you! You see, we’ve combined together THREE of the most powerful muscle-building anabolic growth agents known to man…all in one simple and easy-to-take pill!
Who is this for? **** Anyone looking to gain serious muscle, as quickly as is humanly possible! *** Anyone looking to gain weight, size and genuine muscle mass! **** Anyone looking to increase strength and power!
Contains three high-strength 'pharma-grade' ingredients that help build more mass quickly - Creatine Ethyl Ester, Anabolic Leucine and Instant 2:1:1 BCAAs
Anyone can use these, but they must be used as part of a weight-training program to get the full effects

Strong Anabolic Mass Gainer Capsules - for More Muscle, More Strength, More Power and More Muscle - 90 Capsules

Free Shipping

Why We Love It

Boosts strength and muscle growth.
Promotes power in workouts.
Reliable nutritional supplement addition.

Main Highlights

Strong Anabolic Mass Gainer Capsules for More Muscle More Strength More Power and More Muscle 90 Capsules
Brand : Maverick Labs
Product type: NUTRITIONAL SUPPLEMENT
90 Count Pack of 1
anabolic

4 HIM TestoBalance - Testosterone Supplements for Men - with Zinc + Magnesium + B6 Complex, L-Arginine, Ginseng & Fenugreek - Energy & Muscle Function - 60 Vegan Tablets

20% OffFree Shipping

Why We Love It

New and improved formula.
Supports normal testosterone levels.
Easy to swallow tablets.

Main Highlights

New and Improved Formula! With 9 Quality ingredients: TestoBalance Tailor-made testosterone supplements for men with a healthy blend of Zinc, L-Arginine, White Ginseng (Panax Ginseng), Magnesium, Vitamin D, Vitamin B6, Fenugreek Extract, Selenium and Pantothenic Acid. 60 easy to swallow tablets for a one month supply, take 2 tablets a day with or without a meal
4HIM TestoBalance testosterone tablets for tiredness: Zinc contributes to maintaining normal testosterone levels in the blood, fertility and reproduction, Magnesium and Vitamin B contribute to normal psychological function, energy-yielding metabolism and to the reduction of tiredness and fatigue and Vitamin D contributes to the maintenance of normal muscle function and to the normal function of the immune system (Claims substantiated by EFSA - European Food Safety Authority).
Pantothenic acid contributes to normal synthesis and metabolism of steroid hormones, vitamin D and some neurotransmitters, as well as to the reduction of tiredness and fatigue and normal mental performance (Claims substantiated by EFSA). 4HIM TestoBalance is ideal for men who want to lead an active and more confident life with a sharper mental focus. Ideal for men who want to maintain their energy levels and overall mood. Take control of your own well-being!
Our quality promise: All formulas are in accordance with Good Manufacturing Practice (GMP) and research from a valid number of studies. Extensive collaboration with our experts on claims and regulations. Produced according to strict quality standards with Third-Party analysis. Our Testosterone Supplements for men are Vegan and Halal, Gluten-free and Lactose-free and contain no Sulphate
For optimal effect, we recommend 2-3 months of regular use. 4HIM TestoBalance is one of the Nordic region's most popular testosterone supplements for men and it is designed to reduce fatigue, support muscle function and help maintain normal testosterone levels

8.7

Excellent

Save 20%

We scanned 1360 products

We reviewed these offers relevant to the Weight Gainer Tablets For Skinny People within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Kinetica, Warrior, Reflex, FIT LAB NUTRITION, The Bulk Protein Company, Boditronics, Maverick Labs, 4, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Weight Gainer Tablets For Skinny People in the market, we considered we took a deep dive into 6801 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is Kinetica Sports OatGain Weight Gainer - Raspberry Yoghurt Flavour | 630 Cal, 46g Protein & 82g Carbs/Serve, 15 Servings/2.4Kg | Optimum Grass Fed Protein Supplement | High Calorie & Easy Mixability. We love many things about this product by Kinetica. What sets it apart from the competition is Unrivalled taste and aroma, Easy to mix consistency, Boost energy, repair muscles.
The best value product for most shoppers and where user satisfaction is continuously the highest is Kinetica Sports OatGain Weight Gainer - Chocolate Caramel Flavour | 620 Cal, 47g Protein & 78g Carbs/Serve, 15 Serving/2.4Kg | Optimum Grass Fed Protein Supplement | High Calorie & Easy Mixability by Kinetica based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Weight Gainer Tablets For Skinny People and the best cost-to-value ratio is The Bulk Protein Company, SERIOUS Gainz - Whey Protein Powder - Weight Gain, Mass Gainer - 30g Protein Powders (Cookie & Cream, 5kg)at The Bulk Protein Company with a 25% discount.
Our list of the best Weight Gainer Tablets For Skinny People is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Weight Gainer Tablets For Skinny People in The UK

Related Deals You Might Like for Weight Gainer Tablets For Skinny People

ANABOLIC Weight GAIN Tablets - Quick Muscle Mass Pills Growth Potent Capsules

Bulk Complete Mass Gainer | Chocolate | 1kg | 45g Protein Serving | 65g Carbohydrates | 500 kcal Serving | High-Calorie Weight Gainer | Supports Muscle Growth & Maintenance | High Protein

Nuke Nutrition Creatine Tablets 3000mg - 60 Tablets - Pure Creatine Monohydrate Supplements to Boost Muscle Mass, Bulk & Strength - Excellent Pre Workout for Men & Women - Boost Energy & Performance

Creatine Monohydrate Capsules 3000mg - 180 Creatine Capsules - Exercise Workout Gym Supplement for Men & Women - Creatine Monohydrate Powder (Not Tablets) (3 per serving) Vegan Friendly 2 Months

Warrior Creatine Monohydrate Tablets – 3000mg Per Serving – Supplement for Performance – Supports Muscle Growth – Unflavoured – Suitable for Men & Women – Vegan & Vegetarian Friendly (60 Capsules)

Creatine Monohydrate 3000mg, 300 Vegan Creatine Tablets for 3+ Months of Supply, Creatine Capsules for Men and Women Made in The UK by Nutravita

Nytol Herbal Sleep Aid Tablets

Lipro Shred Rapid XL Fast-Acting Weight Loss Fat Burner & Appetite Suppressant – Triple Action with Apple Cider Vinegar, Garcinia Cambogia, Green Tea – Boosts Energy, Burns Fat, Increases Metabolism

Reflex Nutrition Creapure® Creatine Monohydrate Capsules - Performance Enhancing Creatine Tablets for Strength, Muscle Gains & Recovery (90 Creatine Capsules, 45 Servings - 700mg Creatine Monohydrate)

Trec Nutrition Cm3 1250 180 caps -- Creatine Tablets for MASS / WEIGHT GAIN / STRENGTH / SIZE

We scanned 1360 products

We concluded that: