Under the Weather Ready Cal Powder for Cats | High-Calorie Weight Gainer & Appetite Stimulant | Cat Energy Booster Veterinarian-Approved Pet Supplement with Vitamins & Minerals | Chicken Flavor
$21.99
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Price: $21.99
(as of Nov 04, 2025 18:52:29 UTC – Details)
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Product Dimensions : 3.57 x 3.65 x 4.24 inches; 7.37 ounces
Item model number : Under the Weather
Date First Available : February 10, 2025
Manufacturer : undertheweatherpet
ASIN : B0DWP3FNSJ
Best Sellers Rank: #4,549 in Pet Supplies (See Top 100 in Pet Supplies) #11 in Cat Multivitamins
Customer Reviews: 4.0 4.0 out of 5 stars 309 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
“BOOSTS HEALTHY WEIGHT GAIN Specially formulated to help cats with poor appetites regain essential calories. Whether your feline friend is recovering from illness, dealing with stress, or just needs extra support, this supplement helps prevent weight loss while encouraging healthy weight gain with only 1-2 scoops a day. Shelf life: 24 months from manufacturing date. EXP date printed on back of product label as EXP MM/YY.”
STIMULATES APPETITE: When your cat isn’t getting proper nutrition due to reasons such as illness or medical procedures, this nutritional supplement powder will help restore your kitty’s appetite to keep them healthy and strong for the years to come.
ENERGY BOOSTER: Packed with Essential Nutrients, each serving contains 20 calories, 9 essential vitamins, and 6 vital minerals to boost energy, strengthen immunity, and improve overall health. Its carefully crafted formula is designed to support underweight cats, seniors, and kittens alike.
THE BEST FOR YOUR CAT: Ready Cal for Cats is vet-formulated to provide the essential calories your cat needs daily to gain or maintain a healthy weight. With a savory rotisserie chicken flavor cats love to promote weight gain. Proudly manufactured in the USA without artificial flavors or dyes.
8 reviews for Under the Weather Ready Cal Powder for Cats | High-Calorie Weight Gainer & Appetite Stimulant | Cat Energy Booster Veterinarian-Approved Pet Supplement with Vitamins & Minerals | Chicken Flavor
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$21.99
Stephanie N –
Great addition to your pet’s food!
I got this for a 7 month old kitten who seemed to lack interest in food and wasn’t at a healthy weight. I tried all kinds of food, treats, supplements, etc. but he just wasn’t interested. He was healthy, vet checked, and playful just skinny. I finally saw this and decided it was worth a try and amazingly, he LOVED it mixed with his canned food! Within a couple of days he was cleaning his dish after every meal and by the end of the month he was up to a good weight, his coat was getting shiny, and he just looked ‘brighter’. I’ve been adding some to the wet food of a couple young females and their coats are already looking so much better. I hadn’t thought they looked bad before but they look gorgeous now.
Pam Glatczak –
Good product for older cats or sick cats who need to eat.
I used this for a cat who was losing weight. She really liked it. Unfortunately she has passed away, but it helped get food into her. The other cats were always wanting to eat it!
Heidi Zysk –
Enticing and nutritious
This is a good supplement. I have a fussy 9 y/o who’s had pancreatitis for a couple of years. Her weight tends to drop too much because she isn’t really food focused. Sprinkling this supplement on her food gets her interested, and I know she’s getting her nutrition. Her weight is up and this is part of her success story!
FRF IV –
Turns up his nose.
Beware, if your dog doesn’t like this product which my older dog took one sniff and walked away on many occasions, you can’t return it. That note was probably in the fine print which I didn’t see. I didn’t know whether it was the product or the food but my latest test proved my point with pizza crust, which my dog loves. He was gobbling up the small bites of just plain pizza crust and thought, “Gee, why not add some of this product for extra nutrition mixed in with a little olive oil as a topper, also something he loves?” He walked away on this attempt too after taking one sniff, which was the final blow for me that his nose is not liking it. My Vet when I said I was getting this product warned, “Well, it may just be Pixie Dust but it’s worth a try.” It might just be for fairies, but he didn’t want to even try it. I was really disappointed that I couldn’t get a little money back. It was a $30.00 dollar investment. Maybe you’ll have better luck.
L. Rasmussen –
Good for Hyperthyroid Cats
It’s EXTREMELY difficult to find a supplement/weight gain product for cats who have hyperthyroidism and CANNOT consume added iodine in their snacks or main food. This powdered version doesn’t have potassium iodide (their other versions do). It mixes very smooth (in seconds) in water and/or HydraCare using a handheld foam blender. I’m on my third container of it. FYI, my local pet store contacted the manufacturer because their distributor only carries the dog version. Per the manufacturer: the “dog” version is exactly the same as the cat, just a larger container and the scooper inside is twice the size as the scooper that comes with the cat version. You’re welcome! $$ 🙂
Customer B –
Good ingredients, but I have finicky cats.
Looks good, but my finicky cats won’t eat it, so…that’s just us.
ShineWithJoy –
Good cat supplement!!
I have an elderly cat with hyperthyroidism that is extremely thin despite high quality canned and dry cat food . I give him chicken baby food because it is easy for him to eat, however the baby food doesn’t have all the vitamins he needs, so I mix one scoop of this into it! I love that it provides iron and vitamins. He really loves it! And it’s helping him maintain weight!
ParamedTX –
My cat is addicted to it!
My cat had to have all of his teeth pulled due to stomatitis. He just couldn’t eat enough wet food to keep up his weight. This powder was a miracle! He loves the taste and most importantly he’s back up to his healthy weight. He eats better now, but he still insists I sprinkle a little of this over his food for flavor. 😆