And to try to actually answer the question
@Bcgirl - having noted that really, I cannot and stay on the right side of the forum rules, maybe I can offer some big picture stuff.
Triglycerides and lipoproteins. If you take the venerable Dr Keys above - these things have nothing to do with what you eat. Fats are broken down into fatty acids in the lower intestine and transported to the liver, as are proteins (as amino acids). Carbs are broken down to sugars and bypassed to the liver directly.
What your liver does with all of these building blocks can be described simply (high carb -> high insulin -> fat storage) or it can be described in a way that would take you a lifetime of study to follow - really, food is just the start of the process, but it's like the argonauts running around thinking they are in charge, while the gods look down from Olympus as they release hormones to do their bidding.
Someone who's view I really respect described it to me this way - it's like passengers in the tube - there are lots of stations, and people come in and go out. If you measure the number of passengers in any given train at any given time, it's a number, and it will go up and down, but what does it tell you? I've been pondering that ever since, and there is real wisdom in it - for example, there may be a surge of passengers, and if you already knew that there was a big football match, you might say - "well, it's clearly because of that football match traffic" - and you might be right .. but think of all the different effects on numbers of people in a single train on the central line on the London underground - take the number of people in that train every three months, and tell me that you can deduce anything useful from it...
I don't know that you can.
To stretch it a bit - if you are repeatedly finding that people are getting injuries because of overcrowding (triglicerides very high) then you can do something about it, like lowering carbs, but beyond that... The absolute number of LDL particles in your body is a function of the number of LDL receptors in the liver cells - your liver will regulate that perfectly well, if everything else is in balance.
But - there are some things that we do know.
As humans, we are mainly animal fat and animal protein.
Protein, and a wide variety of it, is used for all the stuff in our bodies - at the smallest level, metabolism is really just protein structures bending in certain ways.
Fat, and a wide variety of it, is used for all the linings of the cells, and for almost all of what the brain is. We have downplayed the importance of fat for the last couple of generations, thinking of it as something inconvenient. This is like thinking of sleep as something inconvenient.
Sugar and refined starches - not as important as some (mainly those selling us stuff with lots of sugar and starch) think - we can do fine without, but man, do we ever like eating them.
Vegetable oils - maybe when we hear about the danger of fad diets, we should think again about substances industrially forced through complex processing in order not to be poisonous sludge, and liable to turning into thousands of toxins during cooking and in our bodies. Maybe filling our diets with so much of it might not have been a good idea.
Energy - all of our major systems need energy, and it is regulated through fat. Maybe that means that fat is more important to us as a species than we think.
Stress will tip everything else out of balance - we should maybe put more effort into "stress hygiene" - the way that we think about "sleep hygiene".
That's where I keep coming back to...
