 From the healthiest beverage to the healthiest food, dark green, leafy vegetables, cruciferous vegetables, cabbage family vegetables like broccoli, brussel sprouts, collards, kale. How could one possibly eat too much kale? Well, there are natural goitrogenic compounds in this family of vegetables that can interfere with thyroid function of people with marginal iodine intake. They can block the thyroid's uptake of iodine. But the answer is not to avoid these super healthy foods, just to get enough iodine in our diet as I've detailed and passed volume. Still though, you can overdo anything. How much is too much? I specify raw here because an enzyme that releases these compounds is deactivated by cooking, so you don't have to worry about even cooked cruciferous. But how much raw is too much? How many cups of coleslaw a day is too much? For example, five cups a day, 10, 15, 20, or can you go up to 25 cups of coleslaw a day, every day, four months at a time. The New England Journal of Medicine, coma-induced by raw bok choy. She was eating about three pounds a day, every day, which means 15 cups a day is definitely too much. In the two months before she was admitted to the Intensive Care Unit in respiratory failure, she'd consumed about 1,000 cups of raw bok choy. Now, each cruciferous vegetable has a different amount of these compounds, so you could probably get away with theoretically 50,50 cups of raw cauliflower a day, but just 3 cups of raw mustard greens a day is too much.