He is in hard work six days a week but I am worried which balancer to put him on as if he is just on fibre and Fibregenix will he get enough energy for his high requirements?

 If the horse is overweight with insulin resistance then he should definitely be on Lami Low-Cal. You can increase his fibre and also add some oil, both will provide cool digestible energy. We always suggest simple veggie oil or a cold pressed or equine approved linseed oil. Once the weight has been lost then Plainum Pro is fine as it will help to provide those few ‘extras’ that a hardworking horse needs.