Due to increased average temperatures and humidity, severe heat stress in dairy animals is observed, which leads to loss in milk production and health problems. Some of the most common signs of heat stress in cows are reduced feed intake, reduced milk yield and milk fat, reduced activity but increased respiration rate, increased body temperature and impaired reproductive performance. As the animal productivity decreases during the summer due to consequences of heat stress, it is one of the costliest issues facing animal producers and certainly one of the primary constraints to efficient and profitable animal husbandry in developing countries. The interventions to combat heat stress in animals include changing the physical environment, genetic improvement and nutritional interventions. The nutritional strategies like increasing water availability, energy and nutrient densities, providing specific supplementation such as trace minerals, vitamins niacin, chromium, selenium, antioxidants, electrolytes and rumen fermentation modifiers that have proven to alleviate heat stress in diary animals.