"Warning! Hydrazine Sulfate is an MAOI (Momoamine Oxidase Inhibitor). What it does is inhibit an enzyme that breaks down monoamines (serotonin, norepinephrine, and dopamine), those brain chemicals that make us happy. MAO inhibitors have been used as antidepressants. However, MAOs have another job in the body: they metabolize tyramine, an amino acid. When taking an MAO inhibitor, tyramine is not broken down, and eating foods with tyramine can raise your blood pressure and heart beat dramatically and cause the worst headache you've ever experienced. This is a very dangerous condition, especially for someone already battling cancer. Most of the foods containing tayramine are not on the cancer diet plan, and you should be avoiding them anyway.
Foods containing tyramine are (mainly) aged, fermented, or pickled, such as most cheeses (except cottage cheese, cream cheese, and fresh Mozzerlla), lunch meats, hot dogs, yogurt, wines and beers. Here is a pretty good list of foods that contain tyramine:
(Note: there is absolutely no accurate list of what foods have tyramine. One site says raspberries and grapes do have them, and another site says they don't. The bottom line is if the cancer patient gets headaches, then it is highly likely they are eating something with tyramine in it. Start eliminating foods in the same food categories as in this list.)
Barleygrass (perhaps the highest percentage of all according to Dr. Duke, but he doesn't list other grasses), which would exclude all barley supplements,
Dry and fermented sausage (bologna, salami, pepperoni, corned beef, and liver),
pickled herring and salted dried fish,
broad beans and pods (lima, fava beans, lentils, snow peas, and soy beans),
meat extracts,
yeast extracts/brewer's yeast, beer and ale, red wine (chianti, burgundy, sherry, vermouth),
sauerkraut,
fruits listed by Dr. Duke (oranges, tangerines, lemon, grapefruit),
some fruits (bananas, avacados, canned figs, raisins, red plums, raspberries, pinapples),
cultured dairy products (buttermilk, yogurt, and sour cream),
chocolate,
caffeine (coffee, tea, and cola drinks),
white wine, port wines, distilled spirits,
soy sauce, miso, peanuts, almonds,
beef or chicken liver, herring,
meat tenderizer, MSG (Accent),
pickles, and
pumpkin seeds.
In general, any high protein food that has undergone aging should be avoided. Also, any over-the-counter cold or allergy remedy should also be avoided."
http://www.mnwelldir.org/docs/cancer1/altthrpy2.htm