In the June 2009 edition of Photonics Spectra, Hank Hogan writes about chirality, or the preferred winding direction of biological molecules.  He states:

Chirality

Many molecules, organic and otherwise, exhibit chirality, or handedness. This leads to circular polarization of scattered light. Inorganic materials are a jumble of left- or right-handedness, and the resulting aggregate circular polarization is almost nonexistent.

That’s not the case for living things, however. Life is self-replicating, Sparks said. That leads to selection pressure for either left- or right-handed versions of a particular biomolecule. All known life on Earth, for example, uses only left-handed amino acids in proteins and right-handed sugars in nucleic acids.

The purpose of Hogan's article was to describe the physics behind the search for life on other planets.  The fact that chirality exists at all demonstrates the importance of geometry in molecular structures.

It follows that if living organisms build specific geometries of molecules, then those particular geometries represent the ideal state for molecules, which will appear in the diets of other living organisms.

Udo Erasmus, in his book, Fats That Heal, Fats That Kill, explains in detail the importance of curved fat molecules in the diet.  He cites research, which reveals fat molecules alter to a straight geometry when heated.  Thus fried fats are dangerous to the body because the fat molecule geometry altered to a straight geometry, which means the fats will now solidify at a warmer temperature. Solidified fats in a body means clogged arteries, clogged organs, and clogged joints.

The chirality observation of specific molecules in living organisms also suggests healing technologies involving rotating magnetic fields.  It follows that some weakened molecules might be conditioned to ideal chirality if they are treated with a rotating magnetic field, which might reform molecules to their ideal geometry.

DNA is another important molecular structure of the body.  It too, possesses the property of chirality in the form of a double helix.  As living organisms age, the DNA and RNA tend to become brittle and malformed.  Scientific experiments with DNA demonstrate its return to suppleness and flexibility when exposed to rotating magnetic fields.