Becon and peanuts created Heisenberg
We all know tye scene that reoccurs every time Walt celabrates his birthday, the bacon. Then we also have the peanutbutter that we can see Walt eating aswell in the series, but how is this connected to the rise of Heisenberg? Simple, adrenaline and some good chemistry!
In the series we see Walter go from doing smaller crimilan things like stealing school supplies and similar but to the end of the series we see him do stuff that could make the Mexican cartel look good and the cheap copy. But, this is actully pretty logical, he gets an adrenaline kick from it and he slowly needs more to get the same kick becaus he is getting used to it.
So the adrenaline is connected but how? How can we be sure? By the bacon which includes a chemical ingredient that is called L-tyrosine which can be made into dopamine which only fuels adrenaline and the kick you get. It is also found in peanutbutter which he also eat in the series.
So when Walt is eating the bacon and peanut butter it isnt just showing how he takes traits from his victims or how he ages, it also shows how he is littierly fueling his own demise.
If Vince Gilliagn inteded this or not I think it was a pretty cool detail, the bacon we see in the series being connected to Heisenberg and a chemical ingridient that is slowmy eating away at the chemistry teacher.