I just wrote several articles about juice fasting for a client. I would be interested depending on the rate per article and how much research is involved. Health, fitness, exercise and nutrition are all part of my favorite niches. Please don't be afraid to contact me.
Thank you for thinking of me. I'm not very familiar with juicing as a topic, but would be happy to learn if the price were right. Textbroker.com is also a good website for finding authors to ghostwrite for you, in case you need it in the future.