I have some very interesting information sheets in English, which you can use as a guide to help your horse. 
This one is about KPU, which is a civilisation problem that most horses suffer from. 
I'll be translating them into French soon, but for now you can copy and translate them too. By reading these sheets you will understand why I think it is so important to feed and pamper your horses, your pets and yourself with high quality non-chemical products, feeds and essential oils. 
I really want to share this information with you to thank you for feeding and pampering your horses with our natural products. 
And if you think your horse might have any of these or other problems, send me a message, I can help. I'm one of a group of experts who specialise in equine health problems.