Saffron is an ancient spice obtained from the Crocus sativus plant. It is highly prized and costly. To obtain a single pound of the golden spice requires 75,000 flower heads. The flowerheads’ crimson-coloured stigmas are harvested and dried to produce saffron. The uniq...

Q: You had a letter from a person who was taking saffron for age-related macular degeneration. Since I have AMD, I am willing to try anything that might alleviate symptoms.

I began taking the spice with no real idea of how much I should use. At my next eye exam, there w...