Hi Coley
Unfortunately dried mealworms are a definite no. They have an imbalance of calcium and phosphorous, which means that calcium is leached from the bones. They are especially bad for hoglets, because they are growing and some end up deformed as a result. But they also apparently have poor nutritional value and not sufficient to enable the hogs to put on the two types of fat they need for hibernation. Fresh mince is also not good re. a similar imblance.
The following is a link of what is best to feed hogs – but really cat/dog/hog food. It also has a table showing various ratios, from which you will see that mealworms and raw mince have the worst ratios.
http://www.valewildlife.org.uk/wp-content/uploads/2018/04/Feeding-wild-hedgehogs.pdf
Don’t beat yourself up too much about having fed mealworms. Many of us did before we found out they were bad for the hogs.
If the hogs there have got used to eating mealworms, you might need to reduce them gradually, because the hogs can become addicted to them. But I would cut out the mince as well. You have an ideal opportunity when any hogs return next year after hibernation to leave the mealworms out completely. They will be hungry and likely eat whatever you offer them. If they have a choice they are likely to choose mealworms. So don’t start feeding them again. Sad that they like the things which are not good for them, but it’s like humans with chocolate and crisps.
Good luck. I hope you manage to wean any hogs that haven’t hibernated yet off the mealworms. Have you tried dried cat food as well as wet stuff? If you don’t already, leaving loads of water around all year round, 24 hours a day could be a livesafer for a hog. But essential if you are feeding dry food.
