Rachie at the risk of doing this topic to death, candida is a prime cause of brain fog (as is mercury). Treating candida can often lift it quite dramatically in some people. Not sure what your health plan is, and possibly you have done this already but keep it in mind. Sugar and high carbs can be a killer.

It's all very well to try and find things to give you a quick "boost", but the problem obviously is there for a reason and something needs to be addressed.

Great if you can find a helpful boost in the meantime, but I would also look to doing something that may help get to the bottom of it.

I also find that a big glass of hot water with the juice of half a lemon mixed with a teaspoon of vitamin C powder can help me in the morning. Even some berocca may help (vitamin B that you can dissolve in water). A boost of these vitamins may give some relief in the morning.

But I will tell you something that did help me at onetime but was pretty expensive. Goji juice. I would just take a capful twice a day and I found I could wake up earlier in the morning and was clearer headed amongst many other benefits it can give.