One of the questions I get asked all the time is:
“Can I mix Missy’s Bucket with [insert supplement or feed here]?”

And the answer is… sometimes. But you do need to be careful.

Missy’s Bucket — like many other high-potency mineral balancers - contains elevated levels of certain trace minerals, especially selenium and iodine. And these two are not ones you want to mess around with. They both have what's called a narrow therapeutic index - meaning the gap between “just right” and “too much” is pretty small.

Why Iodine and Selenium Matter

Let’s talk about iodine, for example. The average horse needs around 4 mg per day.

But toxicity can start to show up at just 25 mg/day in sensitive horses — especially pregnant mares, where it can affect thyroid function, foal development, skin, and digestion.

The thing is, iodine is everywhere:

•    Fortified feeds often contain it
•    Most complete supplements include it
•    Iodised salt adds more
•    Kelp and seaweed products can be sky-high in iodine — and often don’t even label the amount.

That’s why I recommend supplementing with iodine only when the levels are clearly stated — and you know how much is already in the rest of the diet.

Don’t Double Up Blindly

So if you’re feeding Missy’s Bucket, don’t just chuck in an extra multi-mineral, calming powder, or pre-mix feed without checking what’s already covered.
Mixing supplements blindly can easily push things out of balance — or worse, into toxicity territory.

The Takeaway

• Yes, you can mix supplements — but only when you understand what’s in each of them.
• Always check the label (if it even has one), and be extra cautious with iodine and selenium.
• More isn’t always better — sometimes it’s dangerous.
•  If you’re not sure? Ask. That’s what I’m here for. Contact me here.

“Balanced nutrition is powerful — but unbalanced nutrition can undo all your good work.”