All about fruitarianism with a long-term fruitarian, Lena

toxins

  • Toxins in Fresh Edible Fruits and Seeds

    Several commercial fruits and vegetables contain small amounts of natural toxins. These natural toxins help protect the plants and create resistance to diseases and certain types of insects. See Secondary Metabolites in Leaves and Stems

    The kernels within the pits of some stone fruits contain a natural toxin cyanogenic glycoside. These fruits include apricots, cherries, peaches, pears, plums and prunes. The flesh of the fruits itself is not toxic. Normally, the presence of cyanogenic glycoside alone is not dangerous. When kernels are chewed cyanogenic glycoside can transform into hydrogen cyanide, poisonous to humans. The lethal dose of cyanide ranges from 0.5 to 3.0 mg per kilogram of body weight. It is not recommended to eat the kernels inside the pits of stone fruits.

    Ackee, akee or achee - Blinghia sapida - is a food staple in many Western Africa, Jamaican and Carribean diets. There are two main varieties, hard and soft ackees, that are available for consumption. Both canned and fresh forms of this fruit are consumed. However, unripe fruit contains natural toxins called hypoglycin that can cause serious health effects. The only part of this fruit that is edible, is the properly harvested and prepared ripe golden flesh around the shiny black seeds. The fruit is poisonous unless ripe and after being opened naturally on the tree.

George Berkeley

If a tree falls in the forest and no one is there to hear it, does it make a sound?

Seeds

Seed is an embryonic plant enclosed in a protective outer covering. The formation of the seed is part of the process of reproduction in seed plants. Seeds have been an important development in the reproduction and success of gymnosperms and angiosperms plants, that now dominate biological niches on land. 

The term "seed" also has a general meaning of anything that can be sown, e.g. "seed" potatoes (tubers), "seeds" of corn or sunflower "seeds". 

Many structures commonly referred to as "seeds" are actually dry fruits. Different groups of plants have other modifications, the so-called stone fruits (such as the peach) have a hardened fruit layer (the endocarp) fused to and surrounding the actual seed.

Nuts are the one-seeded, hard-shelled fruit of some plants with an indehiscent seed (acorn, hazelnut).

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