Keeping PETS out of vets since 2011

BioFunction8 | Natural, effective relief from chronic gut issues in dogs


BioFunction8 contains a range of organic herbs and sea plants that together help to relieve a variety of gut issues in your dogs. The herbs used will soothe and restore gut integrity, boosting digestion and improving stool formation. The seaweed additions then improve your gut-sick dog’s nutrient profile. This makes BF8 ideal for dogs with IBS or IBD or acid reflux. Further, should it fail in any of these promises, you get your money back. No quibbles.

What is BioFunction8 and how does it work?

BF8 contains organic german chamomile flowers, a.k.a “mother of the gut”. This is a famous gut soother (hence we drink it in tea when struggling after a big meal). BioFunction8 settles the gut, decreasing inflammation and alleviating the symptoms of IBS, IBD and acid reflux.

BioFunction8 also contains organic marshmallow root, a herb known to aid intestinal repair by increasing the mucosal lining  (often lost during gut issues – this is the shiny sleeve on the outside of your dogs stool). The mucsoal lining is where the gut flora live and work. If you build their home, they will come and it’s they that fix the gut from the inside, like little fraggles.

We also include a little chia seed which help to slow the passage of digesta. Dogs with gut issues typically lose form as their digestion factory is on the blink. As you make changes in the diet to fix this (below), chia seeds slow the speed your dogs gut evacuates, giving more chance for digestion to occur, soaking up excess water in the stool in the process. Win win for animals putting out lots of soft poos.

BioFunction8 | Gut Soother Blend

Finally, BioFunction8 includes a blend of 3 Irish, air-dried seaweeds (2 brown and one green) which are not only wonderfully antiinflammatory and antioxidative in their own right but are also deeply nutritious. This is most welcomes in dogs with gut issues which, if you looked, will have quite erratic vitamin and mineral profiles from the turmoil in their tummies.

For more on the science behind BioFunction8, check out our articleEight reasons why BioFunction8 alleviates the symptoms of gastrointestinal disease in your dog“.

Why does my dog have gut issues?

Recurring gut issues are one of the most common reasons for visiting the vet. The majority of these are caused by a life of the wrong food. In the case of the dog, this is a life spent eating ultra-processed foodstuffs such as kibble or canned products. In terms of gut health, these products are from ideal for the following reasons:

  1. Studies show ultra-processed protein such as meat and bone meal (most vet-recommended kibble) is not only much harder to digest by the body (think overcooking that piece of steak but worse) but it’s more antigenic to the body, feeding the wrong bacteria in the gut, inducing dysbiosis (a shifting of the gut flora profile) in the meat-eater.
  2. Dybsiosis is further aggravated by the chemical preservatives used in these products – these kill the life in the product, greatly increasing its shelf life, for sure, but then this toxic crap washes over their gut flora, napalming it.
  3. Kibble and canned food is larger plant material, largely carbohydrates. This is not what the dog or cat’s gut wants to eat daily. Studies show raw meat-based diets produce a more balanced gut flora than kibble.

For these reasons, and many more, for dogs with gut issues the best advice is to FIRST move to a fresh, biologically appropriate diet for your dog, rather than running around looking for a plaster. BF8 is useful during this process (or should not the shift eliminate 100% of their issues).

How do I give BioFunction8?

BF8 is a dry, powdered product containing different dried ingredients of different grind thicknesses so best advice is to first shake the pack. There is a 2g scoop included. Your dog needs around 2g per 10kg of dog. You sprinkle it on their food (and yes, the vast majority like the taste. In fact, because it works so well, don’t underestimate your dogs’ ability to know what’s good for them. Still, you might build to the required dose slowly over a few meals and mix it well into their food!).

Please note…




Video info


Organic german chamomile, organic marshmallow root powder, organic chia seed powder and a proprietary blend of seaweeds.

Money-Back Gurantee

When a moment of ill health materialises, we can never be 100% sure what we are about to buy / give is going to fix it. Of course.

However, we are highly confident BioFunction8 will relieve your dog’s gut issues. In fact, we have in place a no-quibble money-back guarantee on your purchase. If BioFunction8 does not relieve your dog’s gut issues satisfactorily, you get your money back instantly (on a 150g pack). It’s as simple as that.

We do this with all of our products that we claim will do a certain thing.

While you don’t hear too many supplement companies doing this, we know it inspires the deserved confidence but, more importantly, I want you to know that I have worked too hard to put my name to something that doesn’t work.

Customer Reviews

Based on 50 reviews
Contains carrageenan

I bought this several months ago, not knowing about carrageenan being a bad ingredient. Disappointing that it contains this.

Ashling Donnelly
Couldn’t be more grateful for this product

Poor Roary, Cavapoo, had about 3 years of gut issues. We think the chronic gut issues started with long term undiagnosed Giardia (a lesson to get soft poos tested!). Tried so many things. Different food & supplements. I started stool-rite for a while as it was anal glands that triggered the first buy from Dogs First, but it was Biofunction that transformed him. I switched to raw food from paleo ridge first and then added BioFunction and it’s been a game changer. He would have been aggressive from the pain and so his behaviour has transformed as the poor lad obviously in pain from his gut. I had wondered if it was just switching to raw that helped him but we actually ran out of BF and I struggled to get him to eat without it in it! He was back to grass eating and bad poos. As soon as I introduced BF back into his food he’s better again. I will be a life long purchaser. This is also a gratitude post to Conor and the team. Thanks again.

Linda Sinclair
Transformed dog

This product is amazing and keeps my dogs gut healthy . Our dog had dreadful skin issues and we put him on raw diet and this supplement and it keep’s inflammation away . Healthy gut . Healthy skin .

Diane Troje

Just received have not had time to open the package!

Margie DeFino
BioFunction8 Did The Trick!

Bingo had been dealing with eating grass and vomiting almost on a daily basis. Thinking it was due to a empty stomach I fed him a snack before bed. Some days this worked and others it didn't. Since I have been adding the Irish kelp to his diet I decided to stop that and try the BioFunction8. Within a week Bingo had stopped eating grass and vomiting. He continues to do very well on BioFunction8. Thank You Dr. Brady for creating this product!!