Act as a certified nutritionist with 10 years of experience in metabolic health. Provide a detailed explanation of how cinnamon can help regulate blood sugar levels, supported by scientific studies. Include [DOSAGE RECOMMENDATIONS] for optimal benefits, [TYPES OF CINNAMON] (e.g., Ceylon vs. Cassia) and their differences, and [POTENTIAL RISKS] or interactions with medications. Use clear, evidence-based language suitable for both healthcare professionals and general readers.