Essentials:

• Cruciferous vegetables (cabbage, broccoli, brussels sprouts, cauliflower, kale)
• Canned sardines (/wild salmon)
• Coconut oil and Kerrygold butter - sorry, can't choose between them... don't make me!!!!!!
• Grass-fed beef
• Avocados

Honorable mention:

• Unsweetened chocolate
• Sea salt (this stuff is so key - whenever I run out, my food NEVER tastes as good)
• COFFEE