Following 5 days of maintenance diet (their usual diet), on visit 1 (day 5) volunteers would bring their fresh faecal sample to HNU, blood sample and blood pressure measurement will be taken during their visit. The placebo or fibre supplements will be given to them, enough for the next 5 days. On visit 2 (day 10), volunteers would come to HNU to deliver their faecal sample and the next 5 days' worth of placebo or fibre supplements will be provided. Volunteers will return to HNU for visit 3 (day 15) to deliver their faecal sample, blood sample and blood pressure measurement will be taken on site. There will be a wash out period of 5 days with no study product provided to the volunteers. On visit 4 (day 20), the study intervention would then cross-over and the volunteers will deliver their faecal sample to HNU. Blood sample and blood pressure measurement will be taken and the volunteers will be given the next set of products, enough for the next 5 days. On visit 5 (day 25), volunteers would come to HNU to deliver their faecal sample and the next 5 days' worth of placebo or fibre supplement will be given to them. At the end of the second intervention (day 30), volunteers will come in for visit 6 to deliver their faecal sample and have blood sample and blood pressure measurement taken.