All about fruitarianism with a long-term fruitarian, Lena

William T. Jarvis, former professor of public health, founder of the National Council against Health Fraud (www.ncahf.org):

“Enzymes are complex protein molecules produced by living organisms exclusively for their own use in promoting chemical reactions. Orally ingested enzymes are digested in the stomach and have no enzymatic activity in the eater.” 

Andrea Giancoli, R.D., a spokesperson for the American Dietetic Association:

Enzymes are proteins and proteins denature with heat, but those enzymes are denatured - and thus inactivated - when they reach our stomachs. Our stomach acids are designed to break down proteins very efficiently.”

Thich Nhat Hanh

If we stop consuming, they will stop producing.

Mushrooms

Edible mushrooms are the fleshy and edible fruit bodies of several species of macrofungi - fungi which bear large fruiting structures - that are either harvested wild or cultivated. 

Some mushrooms that are edible for most people can cause allergic reactions in some individuals, and old or improperly stored specimens can cause food poisoning. Deadly poisonous mushrooms that are frequently confused with edible mushrooms and cause fatal poisonings. Mushrooms growing in polluted locations can accumulate toxins (e.g. heavy metals).

Fruitarians.net Apple