ORS Can’t Fix Everything: Why Summer Fatigue May Signal Mineral Deficiency

As heatwaves intensify across India, many people are relying on Oral Rehydration Solution (ORS), electrolyte drinks, and hydration powders to stay healthy during summer. While ORS remains one of the most effective tools for preventing dehydration, health experts now warn that hydration alone may not solve the growing problem of fatigue, weakness, and low energy levels during extreme heat. According to Aishwarya Bhatnagar, co-founder of Better Nutrition, many people today mistakenly equate hydration with complete health recovery. “ORS is important because of its life-saving properties in dehydration, but it was never designed to solve nutrition,” she explains. “People are drinking enough fluids and still feeling exhausted because the real issue

is often hidden mineral deficiencies.”Also read: PCOD and Heart Disease: The Dangerous Link Many Young Women Ignore

Why do people feel weak even after drinking ORS?

Doctors and nutrition experts say symptoms such as tiredness, dizziness, headaches, muscle cramps, and low stamina are increasingly common during summer. While dehydration is one possible reason, experts believe micronutrient deficiencies are often the overlooked cause. Modern diets may not provide adequate levels of important minerals like iron, zinc, magnesium, calcium, and potassium. Additionally, excessive sweating during hot weather causes the body to lose essential minerals more rapidly, worsening nutrient gaps. “While ORS replaces water and a few electrolytes, it doesn’t address broader nutrient deficiencies,” says Bhatnagar. “That silent nutritional gap becomes even more visible during summer.” Health experts explain that ORS is specifically formulated to restore fluids and basic electrolytes like sodium and potassium during dehydration caused by diarrhoea, heat exhaustion, or vomiting. However, it does not provide the full range of vitamins and minerals required for long-term energy, metabolism, immunity, and muscle function.

Hidden mineral deficiencies are rising

Nutritionists warn that modern eating habits are contributing to widespread micronutrient deficiencies. Processed foods, irregular meal timings, poor diet diversity, excessive caffeine intake, and high stress levels may all reduce nutrient absorption or intake. People who frequently skip meals, follow restrictive diets, spend long hours outdoors, or work in high temperatures may be at greater risk of deficiencies during the summer months. Common signs of mineral deficiency may include:

• Persistent fatigue
• Muscle cramps
• Headaches
• Weakness
• Brain fog
• Poor concentration
• Frequent dizziness
• Reduced physical stamina

Doctors caution that these symptoms are often ignored or automatically blamed on dehydration alone.

Hydration vs nourishment: Understanding the difference

Experts say the conversation around summer wellness needs to shift from “just hydration” to overall nourishment. “You can be well-hydrated and still undernourished,” says Bhatnagar. “That’s the reality we are not talking about enough.” Health professionals recommend focusing on a nutrient-rich summer diet instead of depending entirely on ORS or packaged electrolyte drinks. Foods rich in minerals and micronutrients include:

• Leafy green vegetables
• Nuts and seeds
• Seasonal fruits
• Whole grains
• Lentils and legumes
• Curd and buttermilk
• Coconut water

Doctors also suggest limiting excessive sugary drinks and ultra-processed foods, which may worsen fatigue and nutrient imbalance.

When should you see a doctor?

Experts advise seeking medical advice if fatigue, weakness, headaches, or muscle cramps continue despite proper hydration. Persistent symptoms may indicate anemia, vitamin deficiencies, thyroid disorders, poor nutrition, or other underlying health conditions. Healthcare professionals emphasize that ORS remains essential for dehydration management, but true summer wellness requires both hydration and adequate nutrition to support the body’s overall health and energy levels.