"I absolutely love their products! It has saved so many kittens that I have rescued ❤️"
Ready Cal® High-Calorie Supplement For Kittens - 80cc
Ready Cal® High-Calorie Supplement For Kittens - 80cc
PROVIDES ESSENTIAL CALORIES
Ready Cal Kitten is an easy-to-use high calorie nutritional supplement that helps to provide the essential calories your kitten needs daily to gain or maintain a healthy weight.
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Product information
Product information
Proper nutrition is essential for a kitten to grow healthy and strong. But when they’re not eating normally, due to reasons such as illness, medical procedures, or stress, it can lead to low energy, depressed mood, weight loss, malnutrition, and even serious health issues.
Packed with ten vitamins, seven minerals, omega fatty acids, and carbohydrates, this high calorie supplement helps to promote weight gain, boost energy, and stimulate the appetite for continued healthy weight maintenance.
Vet formulated for kittens of all ages, Ready Cal Kitten gel supplement comes in a dial-a-dose tube for convenient and accurate dosing. Made in the USA, and manufactured without artificial flavors or dyes, with salmon oil taste cats love.
Ingredients
Ingredients
Malt syrup, soybean oil, corn syrup, cane molasses, salmon oil, dl-alpha tocopherol acetate (vitamin E), sodium benzoate (preservative), manganese sulfate, magnesium sulfate, calcium pantothenate, niacinamide, iron proteinate, pyridoxine hydrochloride, vitamin A acetate, thiamine hydrochloride, mixed tocopherols, sodium chloride, trisodium phosphate, riboflavin, potassium iodide, choline bitartrate, d-activated animal sterol (vitamin D3 supplement), folic acid, vitamin B12 supplement.
Directions
Directions
To supplement your kitten's nutritional intake, dial the ring down on the tube and give 3cc or (½ teaspoon) daily.
Shipping and return details
Shipping and return details
All orders above $30 are eligible for free shipping.
Please note that we only ship to addresses in the lower 48 of United States. We do not ship internationally or to AK/HI at this time.
Expedited Shipping (arrives in 2-3 business days)
Flat rate of $19.99 USD. Orders placed before 3pm EST Monday - Friday (non holidays) ship the same day. In-stock items are normally shipped within 1-2 business days. Expedited and overnight shipping options are not available to Hawaii, Alaska and PO Boxes. We do not ship on holidays. Expedited orders placed on Friday after 12pm EST will be delivered Wednesday (2 business days).
Hastle-free Returns
We are happy to accept returns of unopened, unexpired products purchased directly from our website within 30 days of purchase. Please note, we DO NOT accept returns of opened or expired products. We also do not accept returns of items purchased from Amazon or other retailers.
Please send your returns using the carrier of your choice to:
Under the Weather Pet (ATTN: Returns)
1360 Marshall Avenue Williston, VT 05495
Please ensure to include your name and order number.
Once your return has been processed, it may take 3 - 10 days for the refund to be posted to your account. The customer is responsible for the return shipping fee.
Please note that we only ship to addresses in the lower 48 of United States. We do not ship internationally or to AK/HI at this time.
Expedited Shipping (arrives in 2-3 business days)
Flat rate of $19.99 USD. Orders placed before 3pm EST Monday - Friday (non holidays) ship the same day. In-stock items are normally shipped within 1-2 business days. Expedited and overnight shipping options are not available to Hawaii, Alaska and PO Boxes. We do not ship on holidays. Expedited orders placed on Friday after 12pm EST will be delivered Wednesday (2 business days).
Hastle-free Returns
We are happy to accept returns of unopened, unexpired products purchased directly from our website within 30 days of purchase. Please note, we DO NOT accept returns of opened or expired products. We also do not accept returns of items purchased from Amazon or other retailers.
Please send your returns using the carrier of your choice to:
Under the Weather Pet (ATTN: Returns)
1360 Marshall Avenue Williston, VT 05495
Please ensure to include your name and order number.
Once your return has been processed, it may take 3 - 10 days for the refund to be posted to your account. The customer is responsible for the return shipping fee.
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Veterinarian Formulated
Every product we manufacture has been developed in close collaboration with verterinarians - that means they’re safe, and they work!
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Manufactured in the USA
All of our products are manufactured right here in Vermont, USA, always using the highest quality ingredients.
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Fast Shipping
Your hands are already full taking care of your furry friend. Save the trips to the store with our fast and free shipping!
Over 250,000 pets helped
What Customers Are Saying
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Customer Service
muddypawsrescuenyc When he first arrived, he was in a bit of rough shape. He was found as a stray, so no one knows exactly what his past was like. All we know is that his future is as bright as his smile! After a few bags of @undertheweatherpet Chicken and Rice (which he gobbled up too fast for us to catch a good photo, yum!), and continuing medication for his stiff joints, Tavo is perking up and has blossomed into the most perfect gentleman.
Aimee L.
Amazing results fast! Our Pitty was having a flare up and I decided to try this. He is now holding his leg up sturdy to pee again and has more energy it seems. I can definitely tell this product works! Definitely worth the money! Thank you!
olivemygolden The greatest product ever invented (especially if you have a golden that will eat anything ). I always keep some on hand & they always get used up @undertheweatherpet
Dawn P.
We love it!
Finally found a powder for my picky eaters! My cats don't like seafood flavored anything. It was a great relief to find this product. They happily eat it mixed with their wet food.
Instagram User Thank you @undertheweatherpet for all the wonderful products! Being a foster/rescue mom 🐾 and having rescued an anxious and picky husky 🐶, I can really appreciate your products!
We have freeze dried bland diet for dogs (a quick food replacement when I’m in a pinch - and SUPER healthy for your dog), hemp calming treats for prone to stress pups, and (I know we don’t want to talk about it, but so needed!) anti-diarrhea to help firm up those loose poops 💩!
Skye definitely is an Under the Weather Pup!
Gretchen G.
No longer ‘Under the Weather!’ Our 15 year cocker, Peanut, has multiple issues and most foods make her so sick and unhappy. But now she is dancing for dinner again. Also, she gets happy when she sees the kettle boiling as she knows what’s coming! Thank you for making such a good product for fur babies.
muddypawsrescuenyc When he first arrived, he was in a bit of rough shape. He was found as a stray, so no one knows exactly what his past was like. All we know is that his future is as bright as his smile! After a few bags of @undertheweatherpet Chicken and Rice (which he gobbled up too fast for us to catch a good photo, yum!), and continuing medication for his stiff joints, Tavo is perking up and has blossomed into the most perfect gentleman.
Aimee L.
Amazing results fast! Our Pitty was having a flare up and I decided to try this. He is now holding his leg up sturdy to pee again and has more energy it seems. I can definitely tell this product works! Definitely worth the money! Thank you!
olivemygolden The greatest product ever invented (especially if you have a golden that will eat anything ). I always keep some on hand & they always get used up @undertheweatherpet
Dawn P.
We love it!
Finally found a powder for my picky eaters! My cats don't like seafood flavored anything. It was a great relief to find this product. They happily eat it mixed with their wet food.
Instagram User Thank you @undertheweatherpet for all the wonderful products! Being a foster/rescue mom 🐾 and having rescued an anxious and picky husky 🐶, I can really appreciate your products!
We have freeze dried bland diet for dogs (a quick food replacement when I’m in a pinch - and SUPER healthy for your dog), hemp calming treats for prone to stress pups, and (I know we don’t want to talk about it, but so needed!) anti-diarrhea to help firm up those loose poops 💩!
Skye definitely is an Under the Weather Pup!
Gretchen G.
No longer ‘Under the Weather!’ Our 15 year cocker, Peanut, has multiple issues and most foods make her so sick and unhappy. But now she is dancing for dinner again. Also, she gets happy when she sees the kettle boiling as she knows what’s coming! Thank you for making such a good product for fur babies.
Overall rating: 4.4444447 / 5 from 9 reviews.
AI Generated Review Summary
Summary topics
Review topics: [].
Review highlights
Reviews
Disappointing
"My kitten doesn't like it."
Didn't Help
"My cat wouldn't touch it. She was an adult, not a kitten, and had been diagnosed with lymphoma, hyperthyroidism, and an enlarged heart. She was refusing adult cat foods so I was trying kitten foods. Ordering this product was another attempt to get her to eat. I don't blame the product for failing, it was my cat that was failing. She passed away on 6/21/25."
Applicator it too big
"The end of the tube is way too big to put in the mouth of a kitten or even an adult cat. It’s horse size! I tried heating it to be able to syringe some of it out - but that just made a big mess."
CATS LOVE IT
"MYLITTLE & BIG FURBABIES LOVED THIS IT DEFFINITLY GOOD FOR WEIGHT GAIN , & THEY LOVE THE TASTE YOU HAVE TO TAKE SYRINGE FROM THEM KEEP UP THE GREAT WORK UTW STEPHANIE PETERS"
My kitten loves this!
"My kitten loves this and so do I! When we rescued our girl, she had a bad upper respiratory infection and an eye infection and was not interested in food. Wet or dry. A friend of ours recommended this. She actually sent us one. We put this in some wet food and microwaved it to make it EXTRA smelly. She gobbled it up! It has helped tremendously with her appetite! Love it!"
Great
"Great"
He had an bacterial intestinal
"He had an bacterial intestinal infection. He needed calories after almost dying. This stuff is great and he loves it! Worthwhile purchase"
Save life
"Best kitten food ever 😇for any kitty that just won’t eat 😢this stuff will have them running back for more every day 😇"
Q&A
- Do u have this for senior (11 yrs) dogs
- Yes we do! Check out our Ready Cal for Dogs > https://www.undertheweatherpet.com/products/ready-cal-dog
- Do you have something like this for adult/elderly cats? Or can this be used for all ages?
- This can be used for all ages but we do have a larger size for bigger cats (with different feeding directions). Check it out here: https://www.undertheweatherpet.com/products/ready-cal-cat
