Your IQ, your risk of heart disease, and other health problems are influenced by how well your grandmother ate during the third trimester of her pregnancy with your mother. The effects of the prenatal environment can even be multigenerational. If you want data, study generations grown after The Dutch famine of 1944, Bengal famine 1940s.
Basically, there is strong legacy link between atmosphere (and so available food, water) at the time of spring (time of progeny planning) of grandparent generation.
So if you are pregnant this year (or next year) in India, where drought is predicted, you must take care of your food intake. It is not only critical for your placenta supply line economics but for health all upcoming generations.
In ancient India, predicting drought was possible so State/Nation/Kingdom used to store grains for at least 12 years. Grains grown during famine year and year after famine, was not considered as food due to low nutrient value. Instead grains from State storage was utilized.
Present generation is suffering from chronic diseases. Roots were sown when their grandparents were eating first lot of Green revolution in India. Advent of chemical farming is showing results now.
I know, our dumb govt under the influence of their western masters, won’t think in this direction. Better take individual actions. If you can get old grains, use it for pregnant mothers in family. Save future of India.