My family and I have been using ganoderma for a little over 6 months now. My husband and I have noticed we have more energy and he has lost weight. He has noticed too that his joints don't ache like they have for years. I have 2 children and I give them ganoderma and they have not been sick a lot this winter. You do want to make sure you get log harvested ganoderma and not plastic bag harvested. I'd be glad to share where we get ours from.