In the glamour stakes, the gut ranks somewhere alongside the armpit in the eyes of most people, and is generally left to its own devices. Far from simply being a means of getting food from one end of our body to the other, the gut is the powerhouse of our immune system, and a factory for brain chemicals. I spoke with Rosanne Sullivan from The WellBeing Centre in Auckland and found out why we should be giving this part of our body a whole lot of love and attention. “It’s estimated that roughly 80 per cent of our immune system is location in our gut”, says Rosanne Sullivan, ” and a significant amount of serotonin (our ‘happiness hormone’) along with other brain chemicals are made in the gut. Yet despite being one of our biggest organs, the gut is not often a popular topic of conversation. But it’s something we should pay a lot more attention to, as the negative effects of an under-performing gut can present in surprising ways. “The gut is a big, long …