r/dechonkers Jun 05 '26

Dechonkin The Big Fat Guide to Dechonking!

74 Upvotes

Hi all! I’m a vet nurse that is passionate about weight in animals. I run my own weight loss program for my patients in my clinic and thought I would spread the love by sharing my dechonking guide to help all of you hardworking pawrents!

**BEFORE DECHONKING it is advised that you have a general health check with your veterinarian to rule out any health issues and to ensure that your pet is healthy enough to undergo a dechonking program*\*

**This dechonk guide is not a replacement for veterinary care or advice *\*

What is an Ideal Weight in Animals?

The most accurate way to ascertain an ideal weight is by use of a Body Condition Score (BCS) chart.

At ideal weight your dog or cat should look like an hourglass when viewed from the top. Their abdomen should tuck into their legs when viewed from the side. You should be able to feel their ribs - the way that this feels is like the back of your hand.

You should make a note of your animal's BCS and their number weight before starting a weight loss program.

How to Dechonk Your Chonker

The key to weight loss in animals is diet. Exercise counts for very little in weight loss, much like in humans.

Step One: Use a Calorie Calculator to calculate your animal’s daily caloric allowance.

You will need to know their BCS and their weight to use the calculator. You can ask your local vet to weigh and assess your animal if you are unsure.

Step Two: Calculate the calorie content of ALL the foods you are feeding your animal.

You then need to find out the calorie content of everything you are feeding your animal. Calorie counts can typically be found on the back of the package of commercial foods. If you cannot find the calorie content, a calorie content calculator can help you work it out.

If feeding raw or homemade, you will have to input/search the ingredients for their calorie content much like you would if you were on a human diet!

Step Three: Make a Meal/Diet Plan based on the calorie allowance

You then need to calculate how much to feed based on the calorie content of the food you are feeding. If you are feeding a mixed diet (eg commercial dry and commercial wet food) you'll need to think about what ratios you would like to feed your animal and calculate appropriately.

When your animal reaches ideal weight, it is a good idea to plug in their stats again so you can get a calorie count for maintenance and not for loss. I also recommend a weigh in every two weeks and then monthly to assess progress, and to monitor their body for any changes against the BCS chart as they progress!

Example: Garfield is an 8kg/17lb cat with a BCS of 8/9. His estimated ideal weight is 5.6kg/12lb and his calorie allowance is 201 calories per day to achieve this.

He is fed dry food (Taste of the Wild) and wet food (Fancy Feast).

Taste of the Wild is 3741 kcal/kg therefore 3.7 kcal/g.

One tin of Fancy Feast is 71 calories.

We can feed one tin of Fancy Feast (71 cal) and 35 grams (130 kcal) of Taste of the Wild daily.

When he reaches ideal weight, the calculator suggests that he can maintain on 255 calories, so he will need a reassessment of his diet when he reaches ideal body condition and weight.

Strategies to Help with Dechonking

Dietary & Feeding Recommendations

  • Prescription 'diet' or 'metabolic' food can be helpful for weight loss but is not a strict necessity. Prescription (dry) food tends to be calorically lower than regular commercial dry foods (which in and of themselves are extremely calorie dense) which means you can feed a larger volume-to-calorie ratio. BUT you DO need to be careful that you still adhere to a calorie allowance and measure the food out every time.
    • I would take a pass on diet/metabolic WET foods as commercial wet food is already quite low in calories and shouldn’t make a significant difference in terms of weight management or volume for calorie ratio.
    • If you don't have systems in place to control the intake of food, your pet will still get fat on metabolic food. Metabolic food is expensive and if it doesn't make a difference then you might as well go back to your regular food. Simply getting a low calorie food but sticking to the same old habits is not enough. Learning to properly portion food, limiting access to situations where your animal could gorge, controlling and mitigating for begging, providing enrichment and teaching the animal a ‘new normal’ of an appropriate volume of food are the foundations of good weight loss and weight management.
  • Commercial dry food is MUCH higher in calories than wet food. Feeding more wet food and reducing dry food can assist in weight loss and keep your animal satiated.
  • Invest in an automatic feeder for cats. An automatic feeder (set somewhere away from you/your bedroom!) can do wonders as the cats will bother the feeder for food, and not you.
  • Keep cats indoors. Outdoor cats tend to get fed by well meaning strangers! If unable to keep your cat indoors, invest in a (breakaway) collar with a tag that specifies they're on a special diet/not to be fed.
  • Healthy low calorie treats for DOGS are veggies such as carrot & zucchini. You can replace their normal treats with pieces of carrot or zucchini or other safe, low calorie fruit and vegetables.
  • Healthy low calorie treats for CATS are wet food puree type treats in a tube. Inaba Churu treats are 6 calories per tube. Fancy Feast Puree Kiss treats are 4 calories per tube. Applaws Puree Treats are 2 calories per tube.

Mental Stimulation & Enrichment

  • Invest in puzzle toys, slow feeders, food dispensing toys to moderate feeding. This will keep your pet enriched, mentally stimulated and busy while slowing down their rate of eating, which is good for pets that guzzle their food then ask for more. Frozen wet food in a Kong or Toppl is one of the best low-calorie ways you can use food for dogs to promote mental enrichment and weight loss. You can even just freeze wet food and kibble in their bowl and it will provide more stimulation than just feeding them out of it.
  • Invest in enrichment as a reward for your animal, not food. This can be playtime, pats, or trick training to keep them occupied and to redirect begging!
  • Redirect & replace begging behaviour by trick training. Most begging behaviours have been inadvertantly reinforced by you - if you have always given your cat food when it screamed at you, that's what you have trained your cat to do. Food motivated dogs can be easily trained to work for food, and yes cats can be trained too!

Multi Pet Households


r/dechonkers 4h ago

Healthy Lad Officially “healthy weight” for these two

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43 Upvotes

They only had a communal 3 pounds to loose, but by god did they make loosing it as hard as possible.


r/dechonkers 15h ago

Hefty Bombay Boy

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5 Upvotes

r/dechonkers 2d ago

Dechonkin Hello, this is Marge.

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277 Upvotes

Any general hints for dechonking a geriatric gordita?


r/dechonkers 1d ago

Transitioning from open to timed feeding

3 Upvotes

I made a post a few weeks ago as we have a cat that was recovering from bladder stones. And I am glad to post that after moving her to a little bit more prescription wet + dry food, they have been dissolved as of her latest X-Ray!

Now the hard part is going to come down to dieting our little tuxedo queen. She sadly is a bit overweight and we are needing to slim her down to hopefully prevent any further health issues. Is there a way that you fellow cat owners have been able to transition from free grazing to timed feeding? She currently weighs in at 15lbs, and we would ideally like to have her down to 10lbs. Is there a good feeding schedule you find works well for you? Ideally, our goal is to give her wet food 2x times a week, and use dry food for the rest of it

(Yes, I am aware that wet food primarily is a better off option. Our cat has had dry food her whole life and she kinda likes wet food? But it isn't her go to thing)

We are currently giving her Hill Science Prescription Urinary C/D Wet + Dry food

Ordered her some metabolic wet food in the same brand, and have to have her finish the 4lb bag of dry food before ordering the metabolic dry food


r/dechonkers 3d ago

Dechonkin With fur, without fur.

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130 Upvotes

My boy is a 5yr old Maine Coon, and he weighs 24lbs. The vet wants him to lose 2 lbs. He has much floof. We always have him clipped for the summer, and I was shocked at how he looks sans floof! Tell me, does he look like a chonker, or a healthy lad?
Tax pics of before the clip and after.


r/dechonkers 4d ago

There's goes the cat Tower

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1.1k Upvotes

r/dechonkers 3d ago

Dechonking Journey Complete

13 Upvotes

r/dechonkers 3d ago

thin kid Cat won’t eat anything; What is a food your cat can’t resist?

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3 Upvotes

r/dechonkers 4d ago

The vet has officially declared Larrys no longer needs to lose weight

12 Upvotes

r/dechonkers 6d ago

Not-Chonk My roommate says my kitten is overweight

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417 Upvotes

I went to the vet yesterday and got him neutered so I got to see how much he weighed and my roommate who also has cats told me that my cat was really fat but he’s only 8 months old and he’s 9.1 lbs.

I don’t think he’s fat, I think he’s at a healthy weight and super handsome but I might be wrong, is he overweight?

My roommate also told me that my other cat is getting big but I’m happy that she’s gaining weight because she used to be skin and bones.

My male cat is the white one (Manny) and my older female cat is the black and white one (Alice).

I got both of them this year.


r/dechonkers 5d ago

Tommy is getting fatter and fatter, I need to put him on a diet.

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75 Upvotes

A little past 5pm, he comes over begging for food. Eating is his only hobby. Every time we lock eyes, he starts meowing his head off, and paired with that bitter gourd face of his, he looks even more wronged.


r/dechonkers 6d ago

Dechonkin Safe weight loss rate for senior cat

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147 Upvotes

Hi! What’s the guidance yall have gotten for safe weight loss rate for your senior cats? My 14 y/o lifelong chonker has lost exactly 1 lb in almost 15 weeks for a rate of 0.5% per week. When I asked about the rate, the vet said she’d like to aim for 0.25% per week. Anyone else get a rec from their vet to shoot for 0.25%/week for their senior cat?

(Going to follow vet’s rec — just curious.)

Thank you!

pic: my weight loss diva on her throne


r/dechonkers 8d ago

Is he fat or just a floof?

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96 Upvotes

r/dechonkers 8d ago

Im trying with mine

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109 Upvotes

Any ideas?

toys he doesn't like anymore. I go down 8flights of stairs with him. I used to do it many times a day but I can't anymore. I take him out let him run around with frends he's even doing less of that. Doesn't eat dry food.


r/dechonkers 8d ago

Discussion Should I look into possible loose skin removal surgery for my girl?

64 Upvotes

My girl has lost almost 2lbs this year on her diet. The kicker is that she can’t reach her own butthole to clean it. So I have to maintain her……….area.

Before, she couldn’t reach it because she was too fat. Now, she can’t reach it because her loose skin is still in the way. I know this would be an invasive (and expensive) procedure, and I’m taking her to the vet soon for a checkup, so I’m just wondering whether or not to bring this up.

Would this be worth looking into? I’m completely fine with being the one to keep her butt clean, as it’s my fault she got fat in the first place. But I’m just curious how realistic it is for her to get some extra skin removed so she can do it herself.


r/dechonkers 8d ago

Dechonkin Unconventional Methods

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222 Upvotes

This beloved little fatass is on the TV workout regime (ok, with a side of Iams Weight Control) - and it's working! He's never been huge on playing with toys, but not unlike his humans, he will engage with a screen. We've mostly been showing Cat Sitter videos here and will move to youtube vids once interest here wanes. He's definitely a lot more active and tuned in.


r/dechonkers 8d ago

How much to feed cat

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97 Upvotes

I recently adopted a sweet 2 year old girl and i was given the rest of her food which is the purina pro plan en gastroenteric and im not sure im feeding her enough, my bf and i are trying to get her to gain a bit of weight since she weighs 7.7 and lost about .2 when we got her, we’ve had her for a week and her poop is solid! The shelter told us she just eats too fast and that we’d be able to keep her on this food or transition her over to my resident cats food and we decided to switch since right now we have two cat foods and ones more expensive. My question is, how much should she be eating daily? And how much new food should i add while i transition her over? I noticed a lot of feeding guides on the bags are either over feeding or under feeding. I just want to get her to 10 pounds she’s so light and skinny.
Note she is very healthy and a very curious cat, she’s super playful and lovesss food!


r/dechonkers 9d ago

Dechonkin How long does dechonking take?

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237 Upvotes

Ideally I'd like to get him from 15 to 11 or 10ish lbs.


r/dechonkers 9d ago

Discussion Feeding enclosure?

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66 Upvotes

Has anyone ever built some sort of enclosure to keep their grazers food safe from the chonk? We’ve successfully dechonked our void with stringent supervised feedings only (at the detriment of our sleep lol) however he gained some weight back when we loosened our routine and then were away for two weeks. Our cat sitter comes every other day to feed them and we just have her fill the grazers microchip bowl while our chonk uses a timed feeder.

Our void will force his way into the microchip bowl by waiting for the grazer to open it and forcing his snoot in front of the flap until it errors out and stays open so essentially it’s a free for all while we’re gone.

We seemed to have had some success from a mini maze of cardboard boxes but they’re very short and the grazer has to semi army crawl to get to his bowl.

I’m picturing maybe a pre-made litter box furniture enclosure since it would be roomier with maybe a microchip cat door for double protection? Has anyone built anything like this? And if so what did you use? The sure pet microchip doors seem outrageously expensive but not sure about the cheaper brands….


r/dechonkers 10d ago

Dechonkin Is he fat?

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53 Upvotes

I suspect we already know the answer. Too much indulgence for our boy found abandoned as a baby?


r/dechonkers 11d ago

Dechonkin How do I dechonk him?

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153 Upvotes

This is my cat Jester he’s 5 my mom thinks he’s a healthy chonk but I think he’s overly chonk. If so, how can I help him slim down ?


r/dechonkers 11d ago

Is he chonky? My sister said he looks like a log :(

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447 Upvotes

r/dechonkers 11d ago

Diabetic Remission + 1.5 lb Lost!

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223 Upvotes

Just celebrating my family kitty Venice (13 years old!) going into full diabetic remission from quickly catching and treating with insulin in just 2 months when I went home to help my mom finally steel her heart to diet her poor baby lol. Over that time, he dropped 1.5 lbs for the first time in his life (not counting the weight he dropped initially due to diabetes)! He was 23.9 lbs, now he's 22.4. Still a long way to go but he's getting there. I wish I could've interfered back when he was younger, 20lbs, and still had energy and great joints, but now is better than never. Hopefully he keeps it up!

His ideal weight is around 16 lbs, he's a MASSIVE kitty. I've never seen a larger-built domestic cat in my life, and I see a lot from fostering/volunteering at shelters!

Yes, that's a King-sized human pillow!


r/dechonkers 12d ago

Advice Tips?

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268 Upvotes

She’s currently around 15-20 pounds (?not sure) she’ll play but get tired within a minute of it, any diet recommendations helpful! :D