I was born with an allergy to Coconut. At age 5 I ate a piece of snowman cake and was sicker than a dog and soon discovered I could not have anything with coconut in it. Later in life coconut would cause my throat to swell shut for about 30 seconds, sometimes instantly or late at night while sleeping. If just the slightest amount of coconut was within a food it would cause this. I wondered "WHY" it only lasted about 30 seconds and then I could breathe again, because if it lased longer it would be a deadly reaction. I assume the brain reacts by having the adrenal glands release a hormone, etc....I don't know.
After doing a 40 day orange juice fast, I have never had this problm again. So, YES, I believe everyone has hope, because 99% of the problems with health are food related and starts the day we are conceived. What mom eats or does eat those first 3 months in the womb will effect us the rest of our lives. Mothers that don't care are not mothers, they are just breeders like any oter livestock on the farm obeying the farmer blindly and gladdly accepting poisons/drugs, etc.