Colostrum for Dogs: What to look for and why quality matters

Colostrum is one of my favourite natural supplements, I use it with my own dogs, I use it myself, and it’s something I regularly use in nutrition consults when I’m looking for additional gut, immune or recovery support.

But not all colostrum is necessarily the same.

You can pick up two tubs that both say “bovine colostrum” on the front, but where it comes from, how it has been processed and what’s actually in the finished product can be very different…

First, what actually is colostrum?

Colostrum is the first milk a mother produces following birth. It contains a concentrated collection of nutrients and naturally occurring compounds designed to support a newborn during those first vulnerable stages of life.

Some of the ones I’m particularly interested in are immunoglobulins, lactoferrin and growth factors.

Immunoglobulins are antibodies that play a role in immune defence.

Lactoferrin is a naturally occurring protein involved in immune defence and microbial balance. Interestingly, it can bind to iron, making that iron less available to certain unwanted microbes that rely on it.

Growth factors are involved in cell growth, maintenance and repair, including within the intestinal environment.

You don’t need to remember all of those names. What matters is understanding that colostrum contains a really interesting collection of compounds, rather than being something that simply provides one nutrient or does one job.

So, what does that mean for your dog?

This is where I find colostrum particularly interesting as a canine nutritionist.

Take allergies as an example.

When I have an itchy dog in a consult, I don’t just look at their skin. I want to know what’s happening with their diet, digestion, microbiome, immune system and overall health.

The digestive tract and immune system are closely connected, and the gut lining itself forms an important barrier between what’s travelling through the digestive system and the rest of the body.

This is why I may use colostrum as one part of a broader nutritional approach for dogs needing additional gut or immune support.

It’s not an antihistamine. It won’t remove an environmental or dietary trigger. And it certainly isn’t a magic powder that fixes every itchy dog.

It’s support, and that distinction is important.

What do I look for in a quality colostrum?

Where it comes from matters to me.

Our colostrum is sourced from grass-fed cows raised on Victorian pastures.

You may notice ours also has a naturally creamy, golden colour rather than being stark white. Fresh grass contains natural pigments called carotenoids, including beta-carotene, which can contribute to this colour.

It may even vary slightly between batches depending on the season, pasture and cows.

Personally, I expect some variation from a natural product.

How it has been processed matters too.

Colostrum contains delicate proteins, immunoglobulins and other bioactive compounds, so I want to preserve them as much as possible.

Our colostrum is freeze-dried using low temperatures rather than being spray-dried using high heat.

It’s a more expensive process, but for me, sourcing a beautiful natural ingredient and then unnecessarily exposing it to high temperatures simply to make production cheaper didn’t make sense.

Finally, I want to know what’s actually in it.

Our colostrum contains 28–32% IgG.

IgG stands for immunoglobulin G and is the main antibody found in bovine colostrum.

You absolutely don’t need to remember the name.

What I want you to understand is why I care about the percentage.

Rather than simply saying a product is “high in immunoglobulins”, the IgG percentage gives me a measurable indication of what’s actually present in the finished powder.

The takeaway

You don’t need to become an expert in immunoglobulins, lactoferrin or growth factors to choose a supplement for your dog.

But I do want you to look beyond the front of the tub.

Where has it come from? How has it been processed? Do you know what’s actually in it?

And most importantly, does it make sense for your dog?

For my own dogs and the dogs I work with, colostrum is something I use when I want additional nutritional support for the gut, immune system or recovery.

And when I use it, I want to know I’m using a quality one!

Jacinta