I give my son a cup of tea in a beaker every morning, no sugar just strong tea and milk. He loves it and he doesn't have anymore after that! He eats well and drinks water throughout the day. He brushes his teeth every day too!
Everyone treats me like I am a stupid mother for giving him a beaker of tea? I remember when I was a child, all of us drank tea from a young baby right until adulthood and we all live to tell the tale! I still remember my Mum always giving me milky tea in my bottle and I loved it 
Maybe I shouldn't do it cos of NHS guidelines, but I just don't see the harm? Is there anything associated with it that I really have to stop?