Line Graph for a Solution which has Three Concentrations?

Hi! 

I am not sure if I am posting this query in the correct forum, so please forgive me if I've got this wrong. 

I am doing a research paper into the effect of different macronutrient ratios on sleep (duration efficiency etc)

My IV is Marcos distribution and so obviously I have three components eg. 50% carb 30%protein 20%

I have 5-6 different diets to test. I know I can do a bar chart of all these diets but I also need to show some sort of correlation as my IV progressively changes 

I am therefore a bit unsure how to make a line graph accurately after recording the results of this experiment. 

All help will be much appreciated! Any further clarification, I am happy to give more details. Just ask. 

Very best wishes and thanks in advance,

CK

I'm not sure what you are looking for, but would something like this work
https://en.wikipedia.org/wiki/Ternary_plot

if you colour coded sleep duration?