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Best Dog Food for Weight Gain
If your dog is underweight, struggles to keep weight on, or is recovering from illness or surgery, nutrition matters more than ever. Feeding the right food—rich in high-quality protein, healthy fats, and digestible calories—can help your pup build muscle, restore energy, and maintain a healthy weight. Ollie’s fresh, human-grade meals are carefully crafted to support safe, healthy weight gain, without fillers or junk that slow your dog down.
Understanding Weight Gain in Dogs
Helping your dog gain weight isn’t just about feeding more—it’s about feeding smarter. Dogs may lose or struggle to maintain weight for a variety of reasons, including high activity levels, picky eating, illness, age, or stress. Without enough quality calories, your dog may experience low energy, a dull coat, muscle loss, or weakened immunity.
Common Signs Your Dog May Need Help Gaining Weight:
Visible ribs, spine, or hip bones
Low energy or fatigue
Poor appetite or pickiness with food
Trouble keeping weight on despite eating
Supporting weight gain starts with identifying the root cause and choosing a nutrient-dense, balanced diet that’s easy to digest and enjoyable to eat.
Ollie fresh dog food is designed to help dogs safely gain weight through real ingredients, optimized macronutrients, and custom portions made just for their body type.
How Ollie Supports Healthy Weight Gain
Whether your dog is recovering from illness, coming off a low-calorie diet, or just naturally slim, Ollie provides the building blocks for healthy weight gain—without overloading their system with artificial ingredients or empty calories.
High-Quality, Calorie-Dense Recipes – Packed with digestible protein and healthy fats to fuel weight gain and muscle maintenance
Whole Food Ingredients – Real meat, veggies, and fats that provide full-body nourishment
Custom Portions for Your Dog – We calculate your dog’s ideal calorie intake to help them gain steadily and safely
Gently Cooked for Easy Digestion – Meals are lightly cooked to preserve nutrients and reduce stress on the gut
Our approach focuses on slow, steady progress, so your dog can gain weight the healthy way—without bloating, stomach issues, or unwanted fat.
Every Ollie meal is customized to your dog’s needs, portioned by weight and health goals, and made from ingredients you can feel good about. It’s weight management food without the stress.
Weight Gain by the Numbers
Dogs who aren’t eating enough or can’t absorb nutrients properly are at risk of serious health decline.
High-quality animal proteins help build and maintain muscle—not just fat.
A consistent, calorie-appropriate diet does more to help your pup fill out than any short-term fix.
Without the right fuel, your dog’s body can’t repair itself, fight infection, or maintain energy.
Dogs who aren’t eating enough or can’t absorb nutrients properly are at risk of serious health decline.
High-quality animal proteins help build and maintain muscle—not just fat.
A consistent, calorie-appropriate diet does more to help your pup fill out than any short-term fix.
Without the right fuel, your dog’s body can’t repair itself, fight infection, or maintain energy.
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Ollie Makes Mealtime Easy For
Dogs That Need to Gain Weight
Helping your dog gain weight can be challenging—especially if they’re a picky eater or have a sensitive stomach. Ollie takes the guesswork out with protein-rich, gently cooked meals your pup will actually want to eat, served in just the right portion sizes to promote steady, healthy growth.
MADE WITH REAL, WHOLESOME INGREDIENTS
Every recipe starts with high-quality meat and veggies to deliver clean energy and fuel weight gain.
TAILORED CALORIE LEVELS
We build a plan around your dog’s current weight, ideal target, and daily activity level.
FORMULATED BY NUTRITIONISTS
Our meals are developed with veterinary nutritionists to ensure complete and balanced support for dogs with special needs.
EASY TO DIGEST, EASY TO LOVE
Fresh food is naturally more appealing to picky pups and less likely to cause upset tummies.
Ollie Has Helped Dogs Safely Gain Weight and Thrive
Thousands of dog parents have turned to Ollie when their pups needed help putting on healthy weight. Whether recovering from illness, managing a sensitive appetite, or just needing more nourishment, dogs have shown increased energy, fuller frames, and renewed vitality after making the switch.
No more diarrhea
Cosmo, English LabradorCosmo had terrible gut health and frequently had diarrhea. Since switching to Ollie, he now has normal poop, a shiny coat, fewer ear issues, and lost 18 lbs.
Her health issues went away overnight
Momo, Shih TzuBefore Momo ate Ollie, she often times would get sick (diarrhea and vomiting) to the point of having to be rushed to the local emergency vet. We tried the prescription dog food the vet recommended, but Momo would not touch it. I tried Ollie on a whim after hearing good reviews from a few friends and it was like Momo’s health issues went away overnight.
Relieved her inflamed intestines
Josie, Yorkshire TerrierJosie was suffering from inflammation of her intestines with monthly loose stool which could be difficult to control. Since she's been enjoying Ollie fresh food, she has had no bouts of diarrhea and her digestive system is much more balanced. She loves the food and jumps for joy when it's feeding time.
She's now the healthiest, happiest pup because of Ollie!
Sasha, German ShepherdMy dog had so many digestive complaints before starting Ollie. It seemed no food we tried agreed with her stomach, and she constantly had diarrhea and wouldn’t eat anything. Even on a bland diet, she still didn’t have relief. We have had Ollie for 8 months, and Sasha has had regular bowel movements ever since! She used to go days without eating, and it amazes me how excited she gets to eat her Ollie.
Our Best Recipes for Weight Gain & Weight Managements
Supporting healthy weight gain starts with the right nutrition. Ollie recipes are built with optimal levels of protein, healthy fats, and whole food ingredients that fuel your pup’s body the right way. No unnecessary fillers or greasy ingredients—just balanced meals that encourage muscle growth, energy, and long-lasting health. Whether your dog is a picky eater or just needs more calories, Ollie makes every bite count.
SENSITIVE-BELLIES
Chicken Dish with Carrots
Our Chicken Dish with Carrots recipe is great for poultry-loving pups who appreciate classic flavors and gentle white-meat proteins. Chicken, carrots, and rice are a gentle, yet satisfying combination for dogs with sensitive stomachs, or picky palates.
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Our Fresh Food Helps Dogs
Gain Weight Naturally
You don’t need gimmicks or high-fat, low-quality food to help your pup fill out. Ollie’s fresh meals are calorie-smart, protein-rich, and full of nourishing ingredients that make mealtime something your dog looks forward to. With personalized plans, gently cooked food, and real nutrition that supports steady weight gain, Ollie helps underweight dogs bounce back and thrive—one bowl at a time.