March 30, 2026
10 Best Fast Weight Gain Supplements of 2026
Last Updated - March 30, 2026
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All American Canine
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All American Canine Dog Weight Gainer – High Calorie Dog Food Supplement & Protein Powder for Rapid Weight Gain, Mass, and Recovery – Appetite Stimulant – 60 Servings
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Why We Love It
- HELPS DOG GAIN WEIGHT: All American Canine powder helps dogs to gain healthy weight fast. Our powder is a high-calorie weight gainer and is packed with vitamins, probiotics, and other digestive, joint, and muscle-supporting components that help your pets regain energy and vitality.
- HEALTHY WEIGHT SUPPLEMENT: Our premium weight gainer is formulated with a unique blend of high-quality ingredients working to promote joint health, enhance muscle growth, boost the immune system, and support a dogs overall well-being.
- USEFUL INGREDIENTS: Beef broth protein powder, whey protein, ground flaxseed, beef, liver powder, sweet potato powder, pumpkin powder, blueberry powder, sunflower lecithin, organic kelp, and essential nutrients to boost your dog's weight to stay active and play more.
- ADD WEIGHT & ENERGY TO YOUR PET FAST: Our high protein and fats powered are packed with essential vitamins and minerals to help your dog gain healthy weight and increase energy levels. They are easy to feed and taste great so your pet will love them.
- NONE OF THE BAD STUFF: We're dog lovers. That is why we only use all-natural, safe, and nutritious components. There is no polypropylene (which is safe for cats), glycerin, artificial colors, or trans fats.
- Made in USA. Manufactured in United States of America.
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Supragenix
Supragenix CB-1 Weight Gainer Pills (90 Count) | Weight Gain Support for Women & Men | Clinically Tested Appetite Booster | Powerful Mass Gainer
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Main Highlights
- Proven Weight Gain System: CB-1 Weight Gainer's powerful formula is designed to increase appetite and slow metabolism, helping build real and lasting body mass for both men and women.
- Clinically Tested: Our weight gainer is one of the few weight gain supplements backed by an 8-week clinical test showing users gained more weight on average with CB-1 than with diet alonehighlighting its effectiveness with consistent use.
- Fuller Shape and Curves in Women: Scientifically formulated to support weight gain in areas like hips, thighs, chest, and bootyhelping you achieve a curvier figure with a big butt. CB-1 aims to deliver real, lasting results without risky surgery.
- Build Size & Strength in Men: This mass builder for men is designed to boost appetite and slow metabolic rate, supporting mass gain in key areas like the arms, shoulders, and legshelping you bulk up and develop a stronger, more muscular physique.
- Made in the USA with Globally Sourced Ingredients: Free from harmful chemicals, CB-1 is made in the USA with natural herbs, vitamins, and minerals. Each batch is 3rd-party tested for purity, safety, and effectiveness. Allergen Friendly: No wheat, gluten, shellfish, milk, or most common allergens. Contains soy-derived lecithin and Ragweed-family herbs.
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VH Nutrition
VH Nutrition Eatmor | Appetite Booster | Weight Gain Pills* for Women and Men | Designed for Women with Gentian, Ginger, Alfalfa | 120 Easy-to-Swallow Capsules
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Main Highlights
- GENTIAN ROOT, GINGER ROOT (ZINGIBER OFFICINALE, ALFALFA (MEDICAGO SATIVA, TURMERIC
- NATURAL WEIGHT GAIN PILLS: Eatmor may naturally stimulate appetite and supports healthy digestion.*
- EAT MORE FOOD, HAVE MORE ENERGY: With Ginger Root and Alfalfa, our supplement may help increase hunger cravings.*
- SUPPORTS HEALTHY WEIGHT GAIN: Eatmor is designed to help you achieve a healthier weight by increasing hunger for more calories.*
- * These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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EPN Supplements
Booty Gainer Pro Series - Weight Gainer for Women to Grow Thicker Booty & Larger Buttox | Helps Naturally Curve & Shape Body | Grow Rounder, Wider & Thicker Glutes for BBL Growth - 60 Capsules
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Main Highlights
- Boosts Booty Volume Supports the development of a plumper, rounder backside with consistent use.
- Assists Natural Curves Encourages storage in the hips and butt while helping reduce volume in unwanted areas.
- Maximizes Workout Gains Amplifies the results of glute-focused workouts for a firmer, more toned shape.
- Confidence from Every Angle Designed to help you feel secure, sculpted, and empowered in your own skin
- Non-Surgical Solution A safe and natural way to grow your figure without needles or downtime.
- Directions: Take 2 capsules daily with a meal.
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Scale Nutrition
Scale Nutrition Gain - Appetite Booster Pills for Adults – Natural Appetite Stimulant & Weight Gain Support Supplement with Ginger Extract, Blessed Thistle, Gentian Root & Creatine – 120 Capsules
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Main Highlights
- BOOST APPETITE NATURALLY Supports appetite stimulation with digestive botanicals like ginger, gentian root, and blessed thistle, helping adults eat more consistently and enjoy mealsperfect for those looking to gain weight naturally.
- WEIGHT GAIN SUPPORT FOR HARD GAINERS Designed to help adults increase calorie intake and promote healthy weight gain, making it easier to reach your nutrition and fitness goals.
- SUPPORTS MUSCLE GROWTH & PERFORMANCE Helps support lean muscle development, strength, and recovery when paired with resistance training and proper nutritionideal for active adults and fitness enthusiasts.
- CONVENIENT CAPSULES MULTIPLE SERVINGS PER DAY 120 easy-to-swallow capsules with a suggested use of 23 servings per day, giving flexibility to fit your weight gain and muscle-building routine.
- QUALITY YOU CAN TRUST SCALE NUTRITION Made in a GMP-compliant facility using carefully selected ingredients to ensure quality, safety, and consistency in every bottle.
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Clear-Biotic
Weight Gainer B-12 Chewable Absorbs Faster Than Weight Gain Pills for Fast Massive Weight Gain in Men and Women While Opening Your Appetite More Than Protein
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Main Highlights
- Gain Weight FAST Appetite booster with B12 Gainer. Works great for Women Men Kids and the frail'. Naturally increases Appetite Gaining weight fast! 3rd Party APPROVED
- Powerful ingredients that will Boost your appetite FAST. Help Restore maximum nutritional absorption Boost your muscle and weight with a complete dose a powerful weight gain product available in delicious disovlable for complete absorption. Stop being the skinny Kid, .Fill those Jeans and Bathing suits. Appetite
- Fast Weight Gainer Is your Family member underweight and need to eat more, stimulate their appetite? Are you kids or Parents in need of eating more? Do you want more curves? Weight Gainer fast formula available. stimulates Health appetite to gain weight FAST! Improves Nutritional absorption to Maximize natural weight gain. Boost your loved ones Appetite. If your or Loved one is Underweight Scrawny need help to improve health, Appetite, B12 gaainer is the product for you! Appetite cur
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Jadee
Smart Weight Gainer for Women – Booty Pills, Curves & Shape Support for Healthy Weight Gain, Hips & Glutes – Easy Alternative to Shakes – 60 Pills with Aguaje, Pueraria Mirifica, Dong Quai & more
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Main Highlights
- WEIGHT GAIN PILLS FOR WOMEN Designed for women who struggle to gain weight naturally . These daily pills support healthy weight gain as part of a calorie-supported routine, making them a convenient alternative to traditional weight gainer shakes and powders.
- CURVES, HIPS & BOOTY Healthy weight gain can support fuller feminine curves when approached the right way of booty builder. This formula focuses on gradual, natural-looking weight support to help enhance curves, hips, and overall body shape without extreme or bulky results.
- NO SHAKES, NO POWDERS, NO BLOATING EASY DAILY ROUTINE Skip heavy drinks and chalky powders. These veg capsules fit easily into daily routines, making consistency simpler for women looking for weight gain that are easy to take and enjoyable to use.
- REALISTIC RESULTS WITH CONSISTENT USE Results vary based on body type, diet, and consistency. Best used daily alongside proper nutrition. Designed for women seeking gradual, supportive weight and curve enhancement rather than instant or exaggerated outcomes.
- MADE FOR WOMEN QUALITY YOU CAN TRUST Crafted with womens wellness in mind and produced in a quality-controlled facility. A confident choice for those exploring weight gain for women as part of a balanced lifestyle and body-confidence journey.
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NGL
Appetite Booster Weight Gain Stimulant Supplement Eat More for Underweight Adults & Kids 4+ Fortified with Vitamins B1,B2,B3,B5,B6,B12, Folic Acid, Iron, Zinc, Amino Acids, Flax Seed Oil
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Main Highlights
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MuscleMeds
MuscleMeds Feast Mode Appetite Stimulant Weight Gain Pills Digestive Enzymes Safe and Effective 90 Caps, Unflavored, 90 Count
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Main Highlights
- Advanced weight gain pill: uses an advanced force feed technology to increase hunger, delay fullness and improve digestion.
- Increases hunger hormone ghrelin: ghrelin has been shown to stimulate appetite to help you eat more food throughout the day.
- Delays fullness: ingredients such as ginger root, fennel seed and licorice root help relax the stomach muscles so you can consume larger quantities of food with each meal.
- Advanced digestive enzyme blend: a precisely formulated combination of enzymes designed to survive the acidity of the stomach and work throughout the digestive tract.
- Helps increase caloric intake: by enhancing your appetite, stomach volume and digestion feast mode allows you to eat larger meals and more total calories so you can increase your body weight.
- Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery
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Miracle Vet
Miracle Vet High-Calorie Weight Gainer for Dogs & Cats - Multivitamin Nutritional Supplement Gel, Omega Fish Oil, Calcium - Puppy, Senior, Prenatal Cat & Dog Vitamins, Supplements for Weight Gain
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Main Highlights
- HIGH-CALORIE WEIGHT GAINER for DOGS and CATS - Miracle Vet dog high-calorie weight gain multivitamin supplement is packed with calories and essential vitamins, and minerals to support overall pet health and formulated especially for multiple purposes, including senior dog supplements, dog prenatal vitamins, and dog electrolytes
- 29 VITAMINS & MINERALS - This cat and dog multivitamin is packed with 29 essential vitamins and minerals, including calcium for dogs and fish oil for cats, designed to support your pet's overall health and well-being. Ideal as senior dog vitamins, and dog food supplements, this versatile formula also works as a dog muscle builder and dog food topper for picky eaters ensuring your furry friend gets all the nutrients they need to thrive
- #1 INGREDIENT IS OMEGA-3 FISH OIL - Miracle Vet Weight Gain supplement comes packed with omega-3 fish oil, which promotes healthy skin and coat while providing a natural energy source. Ideal for cat, dog moms and pet care enthusiasts, this dog and cat supplement support the overall health of your furry family members. Additional fish oil health benefits: protects the heart, provides support for dry, flaky skin in allergy, helps slow down the progression of kidney disease, aids arthritic joints
- EASY TO USE NUTRITIONAL SUPPLEMENT - Our weight gainer for dog and cat multivitamin is simple to incorporate into your pet's daily routine, whether mixed with their regular dog food, used as a dog food topper for picky eaters, or added to water. Ideal for small breed dogs, senior dogs, and puppies, this dog and cat nutritional supplement is perfect for pet owners looking to improve their pet's health, muscle growth, and weight gain. Give your furry friend the care they deserve with Miracle Vet
- APPETITE STIMULANT for PETS - Supportive appetite stimulant for dogs and cats will entice even the most finicky eaters, ensuring they get the vitamins and nutrients they need to thrive, including dog electrolytes and calcium for dogs and cats. It caters to various pet needs, making it ideal for cat and dog care. From weight gain and appetite stimulation to senior dog care and prenatal support, this all-in-one formula is perfect for pet parents who want the best for their furry companions
- VET-REVIEWED - Our veterinarian reviewed recipe weight gainer and multivitamin has been designed to be suitable for pets of all ages and sizes. Safe for your pet, no matter their age or breed. Miracle Vet pet supplements are approved by Dr. Christine Priest DVM. CA, USA. Reviewed for quality, safety, effectiveness. Made in the USA and using all natural, vet-approved ingredients with added vitamins and minerals
- NATURAL and HEALTHY - Natural with Added Vitamins and Minerals. Safe and healthy. Free of polypropylene (safe for cats), glycerine, artificial colors, trans fats