Although it is slightly acidic (around ph 6.75), rye bread is much better than white bread (ph 5.5) which is among the most acidic foods on the acid-alkaline food scale.
no it is more healthier to eat weetabix because they have nothing added to them
The ergot in their bread is one theory explaining the hallucinations that appeared widespread, but the land-grab economic theory has its adherents, too.
Yes. You can replace the sugar with honey or molasses or simply eliminate it. Proof your yeast in warm water with a little flour added. The flavor will be a little different, but not much.