You Are What You Eat ~ Doctrine of Signatures

Bleeding Heart ~ Lamprocapnos spectabilis (formerly Dicentra spectabilis)

An ancient doctrine, The Doctrine of Signatures, suggests that plants were given a "signature" or "mark" and their shape, color, texture, habitat, and taste were a clue to the plant's healing properties.  For more information ~ Doctrine of Signatures, Deborah Treijs, MH.  For example,
Tomatoes are red and have four chambers like a human heart.  They contain lycopene, an antioxident, that may reduce the risk of cardiovascular disease.
Walnuts resemble a human brain with a left/right hemisphere, upper/lower cerebrums, wrinkles/folds like neocortex, and contain omega 3, which is essential for normal brain function.
Carrots, when sliced, resemble the human eye, with pupil/iris/radiating lines.  Carrots contain beta-carotene, which the body converts to vitamin A, an important nutrient for eye health.
Grape clusters are heart-shaped, and individual grapes resemble blood cells.  According to recent U-M research findings, grape consumption may lower blood pressure, improve heart function, and reduce other risk factors for heart disease.  Natural News
Kidney beans are shaped like the human kidney, and contain iron beneficial for those with chronic kidney disease.
Avocado/pear/eggplant are shaped like human womb/cervix.  "Today's research shows that when a woman eats one avocado a week, it balances hormones, sheds unwanted birth weight, and prevents cervical cancers.  And how profound is this? . . . It takes exactly nine months to grow an avocado from blossom to ripened fruit." Pears contain folic acid, which is especially beneficial during the first trimester of pregnancy, and eggplant may help fight water retention during pregnancy.
Sweet potatoes resemble the pancreas.  Research from the University of California shows that a high fruit and vegetable diet (including sweet potatoes) may help reduce the risk of pancreatic cancer.  Alive 
Olives resemble female ovaries, and are rich in squalene and oleic acid, which reportedly inhibit ovarian cancer growth factors.  The vitamin E in olives may help reduce hot flashes during menopause.
Onions resemble body cells and clear waste materials from all of the body cells, as well as produce tears which wash the epithelial layers of the eyes.
Celery/bok choy/rhubarb resemble our bones.  Bones are 23% sodium and these foods are reportedly 23% sodium.  If you don't have enough sodium in your diet the body pulls it from the bones, making them weak, so these foods replenish skeletal needs.
Grapefruits/oranges/citrus represent mammary glands of the female, and contain bioflavonoids that detoxify harmful estrogens and help prevent the production of cancer cells.
Figs are full of seeds, hang in twos when they grow, and increase motility and number of male sperm due to their folate content.
Peanuts contain arganine (viagra substitute).  L-arganine has been used for erectile dysfunction.

The Creator may have brilliantly set His mark on creation, so that by careful observation we could find all right doctrines represented for healing, even learning the uses of a plant from some aspect of its form or place of growing.  A local company JAYDANCIN incorporates this theory in the type of plants they use in their organic makeup and skincare products, using the purpose God designed for each plant.

So, the next time you stop to observe a leaf, flower, or food...take a look at the color, shape, and growing habits and discover for yourself what signature it may represent.