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The world is experiencing a micronutrient food and health crisis. Micronutrient deficiency now affects billions of people. Micronutrients are key vitamins and minerals and deficiencies can cause severe health conditions. They are important for various functions, including blood clotting, brain development, the immune system, energy production and bone health, and play a critical role in disease prevention.
The root of the crisis is due to an increased reliance on ultra processed foods (‘junk food’) and the way that modern food crops are grown in terms of the seeds used, the plants produced, the synthetic inputs required (fertilisers, pesticides etc) and the effects on soil.
https://off-guardian.org/2024/01/30/sick-to-death-unhealthy-food-and-failed-technologies/
Changes in USDA food composition data for 43 garden crops, 1950 to 1999 https://pubmed.ncbi.nlm.nih.gov/15637215/