Psyllium (Isphagula, Plantago Psyllium)

Recommendation: Strongly in favor (Clinical trials have shown that Psyllium is effective in treating constipation)

Grade of Evidence: High level of evidence

Diverticulitis [1, 2, 3, 5, 6]:

Recommendation: Strongly in favor (Clinical trials have shown that Psyllium is effective in treating diverticulitis)

Grade of Evidence: High level of evidence

Dyspepsia [1, 2, 3, 5, 6]:

Recommendation: Strongly in favor (Clinical trials have shown that Psyllium is effective in treating dyspepsia)

Grade of Evidence: High level of evidence

Diarrhoea [1, 2, 3, 5, 6]:

Recommendation: Strongly in favor (Clinical trials have shown that Psyllium is effective in treating diarrhoea)

Grade of Evidence: High level of evidence

Hemorrhoids [1, 2, 3, 5, 6]:

Recommendation: Strongly in favor (Clinical trials have shown that Psyllium is effective in treating hemorrhoids)

Grade of Evidence: High level of evidence

Hypercholesterolaemia [1, 2, 3, 5, 6]:

Recommendation: Strongly in favor (Clinical trials have shown that Psyllium is effective in treating hypercholesterolemia)

Grade of Evidence: High level of evidence

Colorectal Cancer [1, 2, 3, 4, 5, 6]:

Recommendation: No recommendation (Studies on the effect of Psyllium on preventing colorectal cancer have yielded mixed results. more studies are needed)

Grade of Evidence: Moderate level of evidence

Irritable Bowel Syndrome [1, 2, 3, 5, 6]:

Recommendation: weakly in favor (Research shows that Psyllium may be effective in helping to treat IBS, but only when used with other treatments.)

Grade of Evidence: High level of evidence

Familial Hypercholesterolaemia [1, 2, 3, 5, 6]:

Recommendation: Strongly in favor (Clinical trials have shown that Psyllium is effective in treating hypercholesterolemia)

Grade of Evidence: High level of evidence

* www.gradeworkinggroup.org 

References: 
1.  Ades T, Alteri R, Gansler T, Yeargin P, "Complete Guide to Complimentary & Alternative Cancer Therapies", American Cancer Society, Atlanta USA, 2009

2. http://www.nlm.nih.gov/medlineplus/druginfo/natural/patient-psyllium.html

3. http://www.nlm.nih.gov/medlineplus/druginfo/meds/a601104.html 

4. http://www.ncbi.nlm.nih.gov/books/NBK20885/

5. http://www.mayoclinic.com/health/cholesterol-lowering-supplements/CL00013

6. http://www.ageless.co.za/herb-psyllium.htm