Definitely get more protein overall, especially at breakfast. Doesn't really matter what. How much protein are you getting? Sounds like very little
I'd look at dropping smoothies though - eat food, don't drink it. You might try changing your IF pattern too.
No reason to drop tuna for salmon. You might want to check the omega 3 content of the tuna though. It varies enormously between species
Four years Primal with influences from Jaminet & Shanahan and a focus on being anti-inflammatory. Using Primal to treat CVD and prevent stents from blocking free of drugs.
Eat creatures nose-to-tail (animal, fowl, fish, crustacea, molluscs), a large variety of vegetables (raw, cooked and fermented, including safe starches), dairy (cheese & yoghurt), occasional fruit, cocoa, turmeric & red wine