Because apparently it will bring the red out in his coat. When I was doing some showmanship lessons with a AQHA mare and her owner and the owner always put paprika in her horses food because if she doesnt the mare goes ORANGE !!! So im trying it with bert to see if it will make the red stand out in his coat
His weight looks good to me, you don't want him tubby. My feed preferences would be timothy which is a good grass hay and adding Senior's and eliminating everything else you are stuffing him with. Senior's is for younger horses that have finished growing. It contains beet pulp, extra oils and probiotics. This diet will likely reduce your feed bill. I'd start him on two lbs of Senior's 2 x daily and likely leave it at that. It is safe to feed but no more than 5 lbs per feeding. An overweight horse can develop as many problems as a severely underweight horse.