If you are on this forum, then, chances are, your weight and health problems are due to the intake of atypical AP's, and, as well (and for the population as a whole), overconsumption of total calories, and inactivity, and sedentary lifestyle, and partly genetics, and not in any way the randomness of your food choices. Might also be due to overconsumption of carbs, though that is debatable.

While I do not have any health problems, I do have weight problems (not too bad though), and I eat far less than 1% of what is available in grocery stores. E.g. I cannot eat walnuts from grocery stores because walnuts need to be refrigerated and grocery stores, even TJ's, keep them on the shelves. Since I can smell rancidity about 6 months earlier than other people can, I only eat walnuts bought fresh from my local farmers' market, and I store them in my fridge. Pretty picky about everything else, too. My dark chocolate must be pure and contain at least 85% cacao with no fillings or additives or flavors. I won't eat any other chocolate. And so on and so forth.

So, I am as "non-random" in my food choices as they come, yet I have weight issues post Zyprexa.

With sex there is no connection between random and multiple partners. This is because:

1) you can pick a partner for monogamy at random
2) you can be very discriminating in your selection of multiple partners
3) you can be very discriminating in your selection of your partner for monogamy
4) you can be non-discriminating in having sex with various partners.

I am not saying that either of (1) - (4) is better or worse than the others. I am just showing that you are confusing "random" and "multiple".