Health Risk Assessment of Heavy Metals Through Cow Milk Consumption in Trans-Himalayan High-Altitude Region

Consumption of heavy metals contaminated dairy milk may affect human health. No such studies have been carried out at the high-altitude region to assess the human health risk after consuming dairy milk. To this end, this study reveals the evaluation of selected heavy metals in dairy milk in the summer and winter seasons, followed by the assessment of heavy metals health risk. Analysis of Jersey crossbred cattle's milk showed that only the zinc level was significantly higher in the summer season. All the non-carcinogenic and carcinogenic parameters were below the permissible limits. However, the carcinogenic risk (CR) level of arsenic and cadmium showed near the threshold level. Based on these findings, it might be concluded that all the studied metals do not have any significant role in health risk. In the near future, CR could be a health concern due to cow milk consumption at a high-altitude region.