Health and Environmental Toxins: Managing Chemical in the Food Chain

This Purposeful Aging session moderated by Dr. Christina Kadama focused on "Health and Environment: Managing Chemicals in Our Food Chain". Dr. Gordon Sematiko, a pharmacist and former National Drug Authority (NDA) head, presented on environmental toxins and their impact on health. Dr. Sematiko explained the five types of toxins (chemical, biological, physical, radioactive, and behavioral) and outlined common sources of exposure including fungicides, insecticides, herbicides, and acaricides used in agriculture and households and their effect on vulnerable populations like seniors and children. He demonstrated how chemicals can accumulate in food crops and outlined proper food handling practices including thorough rinsing with clean water and observing withdrawal periods after chemical treatments. Recommended Steps • Educate household helpers, farmhands, and family members about safe handling, washing, and preparation of fruits, vegetables, and cereals to minimize chemical exposure • Wash all fruits and vegetables thoroughly with running water (preferably warm) before consumption; soak and rinse cereals/legumes, especially if purchased from markets, to reduce chemical residues. • Observe recommended withdrawal periods after spraying or treating animals/plants with chemicals, and avoid consuming animal products (milk, eggs, meat) during these periods. • Where possible, grow own fruits and vegetables using organic methods to reduce exposure to agricultural chemicals. • Avoid using banned or unregulated agrochemicals; purchase chemicals only from reputable, established suppliers. • Test water from newly dug wells or boreholes for safety by submitting samples to National Water and Sewage Corporation (or relevant authority) for analysis, especially in urban/peri-urban areas. • Advocate for and support increased regulatory enforcement by NDA, Ministry of Agriculture, NEMA, and Bureau of Standards to monitor and control the use of chemicals in food production and cosmetics. • Consider peeling fruits/vegetables where possible and using vinegar or plain water (not soap/detergent) to wash produce, especially when concerned about bacterial or fungal residues. • For those using air conditioners (ACs) due to high air pollution, ensure regular filter maintenance and replacement to reduce health risks. • In case of suspected chemical exposure, follow first aid advice (drink water/milk, use activated charcoal if appropriate, seek urgent medical attention), and inform health workers with details of the exposure. • Share information from this session with friends, community members, and radio/TV programs to raise awareness about environmental toxins and safe practices. This video content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have heard or seen in this video. If you found this video helpful, make sure to subscribe.