I checked out all the things that were "banned", and the reasons why. Then made up my own mind.
Nuts - I kinda said "fine" and didn't eat (although I wouldn't swear that NONE passed my lips the whole 9 months).
Cheeses - if they were pasteurised, and especially cooked ones - fine, eat away, and hard unpasteurised were ok too. But I did give up soft unpasteurised cheeses.
Mayo - shop bought fine. But homemade, or from a deli counter, I avoided. (So a pre-made sambo with coleslaw from a factory would be ok, but ham and coleslaw in local newagents deli counter was a no-no).
Ice cream - I gave up whippy cones entirely, but still had scoops from freezer cartons.
Shell fish - I grudgingly gave up non-mobile shellfish. Mussels, clams etc. Even scallops although they jump - just got lumped in with "hard shells". But things like prawns and crab are mobile so not sitting in bad water areas and filter feeding. So while I wasn't then eating crab (hadn't started) or lobster (still haven't started), I certainly DIDN'T give up my prawns!!
Other fish - ate LOADS. Although I did keep my tuna intake down to 1 serving/week max.
Red meats - depended on where I was and how much I trusted the sources (of the meat and kitchen it was cooked in). I did have a couple of red steaks, but mostly went for a bit more cooked than normal.
Caffeine - I couldn't give up tea, but I drink it weak anyway. I limited myself to 1 coffee per day max, and a weak enough one at that (no triple shot versions to keep me awake - that was a KILLER). De-caf just doesn't do it for me.
Alcohol - I mostly gave it up for the first trimester (although I did have 1 eeak mojito on the "holiday of a lifetime" to Cuba at 12 weeks - I brought home all the rum punches from the plane though to enjoy later, and still haven't opened them 6 years later). After that, I had a small glass of wine (usually red) once a week, and one week swopped for a small guinness (good for the iron). But I did avoid beer (was still off the taste from teenage years, only slowly getting back to it now) and spirits the whole way through. I was very bold on Christmas Day (EDD) and had 2 small glasses of red (obviously helped me to relax as DD arrived approx 9 hours later 
).
I was VERY careful of food in Cuba, so no salads etc, and no ice in drinks (lots of Coke and Sprite from cans), and I had brought a good few cup-a-soups and cereal bars in case, most of which were used. I couldn't face bananas for a couple of months afterwards either as bread and bananas was a staple from the buffet for the week (not a lot else I could trust). But DH didn't get that much better fed to be honest, and he didn't have to be careful like me.
As long as you know what the doc recommends, and why, you can tell everyone else to "go jump", as you are basing your actions on medical advice. My doc actually recommended that, while avoiding having a binge, the odd small glass of wine was often very helpful to relax MTB and better than having too high blood pressure (city centre based and had lots of patients who would be VERY fond of the drink, and saw lots of FAS etc too). In fact, I was being more cautious on some things than she felt was necessary (within reason and taking account of how things were prepared and stored).