My mum had a 30 odd year old TB x Arab, and she rang up the veteran society for ideas to keep her weight, they gave her loads of ideas, apart from the obvious, layering them up and limiting their exercise so that the fat consumed is not worn off through exercise but built up as body stored fat, also mineral imbalance can cause loss of weight or the animal to be underweight, i'd recommend consulting your vet about what you can do, and whether your horse is getting the vitamins and minerals it needs (no offense intended) , I'll send my mum a link of this post so that she can give you more information about the veteran society, but the advice they gace her worked very well and she did gain a fair amount of weight.

Also, high energy foodstuffs such as sugarbett or quickbeet might help, and limiting either the exercise or the amount of work you are doing with your horse, hope i helped (:

xo

Nope allen and page Calm and Condition works everytime for me and its really cheap, lasts forever. my 21year old and 4 year old ex racer are on it and works a treat.

Hello, i would suggest allen and pages "Veteran Vitality". I have just started feeding it to mine. It does need soaking for 3 minutes and looks like porridge after.Therefore its easy to chew, high in fibre and all natural ingredients, perfect for maintaining weight and mobility, mine love it.  Have a look on there website, i would definitely recommend. Hope that might be a help. x