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Happy Tummy Expert

5 months ago

Dear Bhavesh Joshi, Thank you for the question

Weight gain is a journey which requires appropriate nutritional management along with stress management, ideal sleeping hours and physical activity to maintain a healthy weight, prevent loss of lean body mass, Muscle mass and avoid malnutrition.

WHO has given different BMI (Body mass index) classifications to categorise adults into different weight categories. BMI is a simple index of weight-for-height. It can be considered as a 2^nd level indicator of overall health.

It can be calculated using a simple formula of BMI = Weight (kg) / Height (m²)

Following is the WHO BMI Classification for Asians

18.5 to 23 - Normal

Less than 18.5 - Underweight

23 to 27.5 - Overweight

Above 27.5 - Obese

As per WHO BMI (Body Mass Index) classification, a person weighing less than 18.5 kg/m2 is considered underweight.

Ideal body weight for an individual can be calculated using the Broca Index (BI) which is: Ideal Standard Weight (kg) = Ht (cm) – 100

Please note it is recommended that the target body weight must be maintained within the normal BMI & ideal body weight range.

The causes of underweight or unintended weight loss can be due to genetics, inadequate food intake, stress, hormonal imbalance, malabsorption or other underlying health condition which may require medical assistance.



An ideal weight management program such as weight gain involves lifestyle management including dietary modification, regular physical activity, hydration and good sleep cycle. With any weight gain diet, changes take time to reflect as your body requires sufficient time to adapt to the changes in order to show results.

A high calorie and high protein diet is recommended for weight gain. Daily protein requirement should ideally be followed as 0.8-1g protein per kg body weight.

Here are some vegetarian sources of protein 

• Milk & milk products like paneer.
• Legumes: lentils, beans (chickpeas, kidney, mung, pinto etc.), peas (green, split, etc.), soybeans (and products made from soy: tofu, tempeh, etc.), peanuts.
• Nuts and Seeds: almonds, pistachios, cashews, walnuts, hazelnuts, pecans, hemp seeds, squash and pumpkin seeds, sunflower seeds, flax seeds, sesame seeds, chia seeds.
• Whole Grains:  wheat, quinoa, rice, wild rice, millet, oats, buckwheat,
• Other: while many vegetables and fruits contain some level of protein, it’s generally in smaller amounts than the other plant-based foods. Some examples with higher protein quantities include corn, broccoli, asparagus, brussels sprouts, and artichokes.

Here are few guidelines that can be considered for weight gain

• Having a Healthy Diversified Balanced Diet that includes all the food groups in the right quantity which thereby provides you with all the essential macro and micro nutrients that your body requires daily for proper functioning. Include energy dense foods, keeping in mind the daily needs.
• Maintain a positive energy balance where the calorie intake should be more than the energy expenditure.
• Include energy dense foods, keeping in mind the daily needs. Some of the energy dense   foods include Whole wheat, multigrain millets, dairy products, nuts, colocasia leaves, banana, raisins, pulses/lentils etc.
• Do not skip meals. Eat small frequent meals.
• Three major meals a day with healthy nutritious snacks in between is preferred.
• Include good amount of fiber in your daily balanced, some of the god sources of fiber include whole grain, multigrain, millets, fruits and vegetables, nuts etc.
• Try to increase the serving size and portion size gradually and systematically
• Include healthy fats from nuts and seeds.
• Drink at least 8 glasses of water per day to maintain hydration
• Indulging in physical activity can help in increasing the appetite and give a feeling of hunger.
• Try to follow a good sleep regimen in terms of both quantity and quality.

For a customised and personalised meal plan for specific conditions, please contact your Health care professional.

Hope we have answered your query.

Wishing you a great day ahead

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