Healthy with Herbs and Roots: Tips from Pharmacist Arnold Achmüller. Why does yarrow help with a feeling of fullness? What is a detox regimen? And does massage oil really work against stomach cramps? Pharmacist Arnold Achmüller summarizes the most effective recipes and health tips for better digestion and detoxification. He provides a compact, easy-to-understand overview of the basics, the most important medicinal plants, and their active ingredients. Traditional home remedies, scientifically verified. Simple recipes with information on effort, shelf life, and active ingredients.