Not all of these are healthy substitutes in my opinion, but some are, so use your own judgement. 20 Unique Healthy Food Alternatives --I'm interested to read about some of these things, and I know some of the substitutions only work in some circumstances.
spray the plant with epsom salts 1 teaspoon dissolved in a spray bottle of warm water (about 4 cups). that gives the pepper plant a boost of magnesium that is required at flowering time to produce fruit. spray them again 10 days later.