Not really. For the most part vocal hygiene is about good sense. You instrument is your body, so you want to make sur that you are in the best of health at all times. You'll want to regularly drink water (enough to keep your urine pale), get enough sleep, and get some form of regular exercise to have enough energy to meet the demands of singing. You'll want to avoid foods that cause cause phlegm, making vocal production difficult, and also limit things that tend to dry you out like salt, peppermint, coffee and regular tea. Each person is different, just be aware of any reactions that you may have to certain foods, beverages, and even medications that might make singing difficult or unpleasant