Generally, yeast is not harmful to humans, and is actually quite ubiquitous.
According to provided information: there is no danger whatsoever, in eating raw yeast in amounts one normally would consume. If you eat any raw fruit or vegetables, you eat raw yeast. It's in the air, the soil and on every surface on Earth. Yeast, other fungi, bacteria, and many, many other microorganisms are ubiquitous on the planet.
In essence, yeast is everywhere, and consuming it in typical amounts presents no danger.
