I love this tea. It's a milky color with a slightly sweet creamy taste. I use it as a base for my green smoothies in the morning, and I add it to the hibiscus/olive leaf tea I drink throughout the day. It cuts through the acidity and bitterness in the hibiscus/olive leaf.I've been drinking the hibiscus tea for several years, which has a strong diuretic effect, and haven't noticed that the watermelon seed tea has made it any worse. I also don't know whether it would have that effect on its own.The instructions say to make it fresh every day but I make 4 cups every other day and store the extra in the fridge.I'm using it because I read it was good for my blood type. I don't have kidney problems.The only thing that would make it better was if the seeds were organic.