Is it okay to pitch the rind over the fence when you're done eating the red part? The answer is yes, in small quantities, watermelon rind is okay. And they can eat the ripe part too. Just remember that there is a lot of sugar in watermelons, so it's not a good idea to toss those half ripe melons into the pasture. You might end up with a horse that has colic. If your horse is greedy eater you might want to break the rind into pieces. But there's no reason your horse can't enjoy this summertime treat--in moderation.
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