I was in Whole paych...er Foods the other day and overheard a woman telling another woman to buy some supplements to help her allergies, naturally. I was trying not to creep too hard but they were standing in front of the wall of vitamin C options, which led me to be curious what actual evidence there was, seeing as I don't often hear about nutrition and allergic rhinitis/sinusitis. It's pretty common to hear complaints about seasonal allergies/hay fever at this time of year, and in my general google searches, I saw some potentially misleading reports about 'natural' tips for managing them, even on sites such as WebMD (1). The WebMD article talks about using 'nature-based' products, such as butterbur, herbs, quercertin and vitamin C. While some studies support it's effectiveness , Butterbur has liver safety issues related to its pyrrolizidine alkaloid (PA) content, and PA-free should always be recommended (WebMD's did not mention this); Butterbur has...
Nutritional Sciences: Basic Science and Clinical Perspectives