Iodine rich foods and selenium rich foods are good for hypothyroidism. Here there are really good list of foods for to eat and to avoid for hypothyroidism
http://www.belmarrahealth.com/foods-to-eat-for-hypothyroidism/
The main things to avoid are soy sauce and raw goitrogens , as follows:
• Broccoli
• Cauliflower
• Kale
• Brussels Sprouts
• Mustard Greens
• Radishes
• Spinach
• Strawberries
• Peaches
• Soy-Based Foods
• Peanuts
I am curious about how you are doing since starting on 50 mcg of T4 med. Do you have any symptoms now? What are your Free T4 and Free T3 levels, along with reference ranges?