When cats stop eating—whether they’re old, sick, or just tiny—this high-calorie gel gives them the nourishment they need to bounce back.
Provides essential calories to promote weight gain
Stimulates appetite
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Boosts energy & mood
Purchase Options:
FREE Shipping Above $30
“My 13 year old cat, Sunny, wasn't eating. He slept all day. I thought it was the end, but after giving him 2 days of Ready Cal, he started eating and brought out toys for the first time in a long time. He's put on some weight. He is so picky, I didn't think he'd take it, but he seems to like it.”
Jennifer A.
Verified Buyer
DETAILS
Ready Cal is an easy to use high calorie nutritional supplement that helps to provide the essential calories your cat needs daily to gain or maintain a healthy weight.
When our cats do not feel up to eating, it can cause low energy, depressed mood, and weight loss, which can quickly lead to malnutrition and further health issues.
This supplement helps to provide essential calories for cats that are not eating enough to maintain a healthy weight. Ideal for cats in their 'golden years' where maintaining weight is critical for slowing down the aging process.
Made in the USA with ten vitamins, seven minerals, and essential fatty acids, our vet formulated gel is designed for cats and kittens of all ages who may not be eating normally due to reasons such as stress, age, medical procedures, or illness.
Comes in a dial-a-dose tube for accurate dosing, with a natural fish taste cats love. Manufactured without artificial flavors or dyes.
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
To acquaint your cat with the flavor, place a small amount of gel on its nose or in the mouth.
To supplement your cat's caloric or nutritional intake: 5 cc (or 1 teaspoon) per 10 pounds of body weight daily.
When your cat is not eating its full ration: 10cc (or 2 teaspoons) per 10 pounds of body weight daily.
Shipping & Returns
Regular Shipping (arrives in 5-8 business days)
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.
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.
CUSTOMERS USUALLY BUY
Maximize Your Cat's Caloric Intake with This Recommended Duo!
The syringe is perfect for quick, measured calories, while the powder can be mixed into food for a sustained calorie boost throughout the day. Ensure your cat gets the total care they need to thrive!
Ready Cal High-Calorie Supplement For Cats
$21.99
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Ready Cal High Calorie Powder for Cats
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What Customers Are Saying
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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.
