Agree with everything except the ancient grains bit. While it does not in itself mean anything (good or bad) in terms of personal nutrition, buying heritage or

Agree with everything except the ancient grains bit. While it does not in itself mean anything (good or bad) in terms of personal nutrition, buying heritage or unusual food strains clearly helps improve biodiversity in our food supply (because there is an economic incentive to produce those strains) and is generally good for resilience - if the major commercial strains become susceptible to pests and diseases there are others to fall back on. The lack of such diversity in certain food crops (eg bananas being one of the worst examples) is of concern as it makes our food supplies fragile.