I have read a little bit about feeding black oil sunflower seeds to horses to improve their coat. My horse already has a really good shiny coat but I would love to bring out her dapples more. At the moment you can only see them faintly when the sun shines directly on them and they never show up in photos. I've read that half a cup a day is good for shine without causing weight gain (my horse is a very easy keeper). What about if I just used them for treats a couple of times a week (or as a reward if teaching a trick) instead of feeding it everyday, would that still have the some benefit?
Are there any dangers associated with feeding sunflower seeds?
Also where can I get them from?