Collo-Cal D

Collo-Cal D
250ml Bottle

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  • 250ml Bottle £14.84
  • 1 litre Bottle £40.99

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£14.84 to £40.99


Palatable and popular amongst cats and dogs, Collo-Cal D is a delicious Calcium & Vitamin D supplement specially designed to ideally meet the nutritional requirements of young animals, whelping bitches and nursing queens. Also suitable for administration to older animals to supplement their diet, Collo-Cal D is simply added to drinking water and helps to promote high energy levels. Calcium is well known as an essential component for optimal bone growth and bone structure, hence why a Calcium-rich supplement is ideal for young, growing animals. Vitamin D improves is known to enhance the absorption of Calcium, maximising the efficacy of your supplement.


0.75% w/v colloidal solution of calcium, 70iu of Vitamin D per ml.

Feeding guidelines

Simply add the required quantity to water, milk or feed.

  • Puppies/Dogs - 1ml per 2kg bodyweight per day
  • Whelping Bitches - 1ml per 1kg bodyweight per day
  • Kittens/Cats - 0.5ml per 2kg bodyweight per day
  • Nursing Queen - 0.5ml per 1kg bodyweight per day

Need help or advice? Contact us:

  • Landline: 01582 842096
  • Mon - Fri: 8:00am - 5:45pm
  • Sat: 9:00am - 1:00pm
  • Email: [email protected]

All prices include VAT where applicable.

Reviews (8)

Summary of Reviews for Collo-Cal D

Overall 5
Ease Of Use
Value For Money
Absence Of Side Effects
8 out of 8 (100%) customers would recommend this product.
5 stars (5 reviews)
4 stars (3 reviews)
3 stars (0 reviews)
2 stars (0 reviews)
1 stars (0 reviews)

Only verified purchasers of this product can leave a review.

55 Important part of whelping kit
Verified Purchase

By on 5 July 2021

The most effective Ca supplement (has vit D too) which was a life saver when my girl had not eaten post part for almost 3 days. Vet check showed her Ca levels were exactly right and use of this product was endorsed by my vet.

Customer recommends this product

55 Helping a friend
Verified Purchase

By on 7 February 2021

This product was bought for an elderly friend who does not have the internet. I suggested trying VioVet as I buy from them and have always had excellent service. My friend was thrilled to receive the product as no one else seemed to know where to buy it and was easy to use in liquid form. Bella is doing well.

Customer recommends this product

45 Callo cal d
Verified Purchase

By on 22 April 2020

It helps Harry with his calcium deficiency

Customer recommends this product

55 Excellent Product
Verified Purchase

By on 14 June 2019

Very good, easily and quickly absorbed, seems to be palatable when mixed in to food or drink, we use for dogs when they are nursing puppies

Customer recommends this product

45 Collo-Cal D
Verified Purchase

By on 4 October 2018

Have used it before and wanted it for an in whelp bitch.

Customer recommends this product

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Q & A

Below are some recent questions we've received regarding Collo-Cal D, including answers from our team.

9 September 2021 at 9:55pm



0.5ml per kg of a nursing queen into water or feed.
I would need to use 4ml how much water should that go into, so that I don't dilute it to much, her drinking bowl holds 500ml water

  • VioVet Staff

The full amount can be mixed into as much water as your cat will drink within 24 hours. We recommend mixing this with an amount smaller than your cat will drink over this time though to ensure the full dose is taken.
Work out roughly how much your cat drinks per day and then mix the 4mls into around 20-50% of this amount. Top up the bowl when the dose is given and it is empty.

If your queen is 8kg then they will be drinking roughly 400mls a day so if needing an estimate then mixing the amount into 50 to 100mls is a good suggestion. If on wet food then they may drink less than this.

26 August 2021 at 6:44am



My dog is panting and shaking and taking time away from puppies since she finished whelping 5.5hrs ago. She had Collo-Cal day 3 days in lead up to whelping, during whelping and I just gave her a dose now. She is panting less (just rapid breathing now) and back in feeding puppies. How soon can I give her more. I’m terrified she’s going to develop Eclampsia

  • VioVet Staff

It is advised to feed a Calcium/Vitamin D supplement like this during lactation so you are doing the right thing. The birth process can be very stressful for your dog so it is likely this is the cause of the panting. You should not exceed the recommended dose as per the packaging, if you are concerned about your dog then I strongly advise chatting to your vet.

26 May 2021 at 11:30am

Dog in labour


What dosage should you give to a 20kg dog during contractions before each puppy?

  • VioVet Staff

This supplement contains calcium and vitamin D. This does not support the birthing process specifically, it is mainly advised to help support lactation where calcium and vitamin D requirements are higher. You do not need to dose this before contractions but supplementation is advised as per the feeding guidelines daily to support lactation.

9 November 2020 at 12:50pm



My lactating bitch will not drink or eat any foods which Collo-CalD is on/in. Can it be administered via a syringe directly into mouth of bitch ?

  • VioVet Staff

Yes this product is a liquid that can be administered either mixed in the feed or directly into the mouth via a syringe.

30 June 2020 at 1:23pm

How old do puppies need to be for this


I have 2 week old boxer puppies that I am hand rearing, at what age can they have collo-cal d?

  • VioVet Staff

There is no minimum age for supplementing with Collo-Cal D and this is safe for use in a 2 week puppy as long as you follow the dosing guidelines.

23 November 2014 at 8:31pm

Collo-cal D Over dose

Mr R Fryer

What is the chance of over dosing calcium to a 6 month old puppy fed BAFA raw diet and supplimented with Collo-cal D if given 1ml per 2kg body weight ?

  • VioVet Staff

Collo-Cal D is such a long-established product that a huge amount of experience has been gained regarding its use and potential side effects. The feedback from users gradually gets back to the manufacturer who can then adjust the dose recommendations as required. You can be sure that the recommended dose is a sensible and prudent guideline, and I would recommend that you follow it. Raw meat diets are prone to problems due to lack of available calcium/vitamin D so reducing the dose would carry its own risks. If you go with the recommended dose, you are in good company and I am sure it will give good results.

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