Hi guys, a collegue told me about a Guar Gum/Flour. After a simply research, i've found an interesting study it about:

Antihyperglycemic and antihyperlipidemic effects of guar gum on streptozotocin-induced diabetes in male rats

Although the experiments were done on rats, the results are very promising, mainly, under lipid profile. It could be an useful allied in our cyclies to fight cholesterol. Give it a shot !