Ephedra Extracts-free diet pills can include any combination of vitamins, minerals, herbs as well as other botanicals. MayoClinic.com indicates that some ingredients used in these supplements can include guar gum, hoodia, chitosan, extracts of green tea and conjugated linoleic acid. Following the FDA's ruling, many weight loss supplement manufacturers resorted to using bitter orange, that has chemical properties similar to ephedra sinica.