Hbkaneonite, How is there a problem timing in vitD, folic acid and calcium? Take folic acid 2 hours away from Levothyroxine, and vitD and calcium 4 hours away. Unless there is anything on the calcium and folic acid patient information leaflets to say otherwise, you can take the supplements together with food. Consult your pharmacist if you have concerns about medication and supplement interactions.
The manufacturers should ensure relevant information is on their patient information leaflets. I'd like to see "take before breakfast" expanded to "take 30-60 minutes before breakfast" for clarity. GPs can't be expected to have more information than the manufacturer provides. Binding with food/meds will reduce absorption and uptake but isn't an interaction per se.