On occasion, I have shitake. I also seem to intake quite a bit of ginger (always served with sushi) and garlic. Another bonus to garlic is to add leeks with pork (the pork has a unique reaction with leeks to increase stamina), which is most often used in Ramen (often during the hot summer).
Along with the wife dishing out about 50 types of vitamins, herbal tablets, minerals, etc., she's been feeding me a lot of veggies, most of them are not great in taste, but fills the old saying with "some of the bad tasting foods are what's good for your health" (or something like that). She had been making hot meals, with the constant explanation that it is always best to keep the stomach warm in the cold weather for better digestion.
I'm constantly eating tofu, and other Omega-3 fatty acidic foods, as well.
Also, the wife insists on using canola oil, despite it being a little more expensive than other oils for cooking.
AND, I've been in the martial arts for at least the past 20 years!!! (only concern is with my shoulder injury, can I keep going!??)
I also recall hearing the doctors say to eat everything, but they also said to stay away from pork products, and high fats, because they are the most difficult to digest. I had, for a long time, been able to avoid pork in most cases, but seemgly have not had digestive problems while eating pork products in the past several months...maybe it's because It hasn't been as high a quantity as the states, and I'm not on enzymes.
So, I had ALWAYS eaten pretzels (Thank goodness I love those!!). I went for a long time in Japan without them, too...tried some replacements, but nothing can replace pretzels!! (However, between the pretzels and cola, I probably gained 10 pounds!!)