Nearly one-third of the world population is overweight. If BMI (Body Mass Index) of a person goes beyond 25.0, the person is considered as overweight. Details are as follows:

OBSERVATION	INTERPRETATION AS PER WHO GUIDELINES
Less than 18.5	Underweight
Between 18.5 and 25.0	Normal
More than 25.0 and less than 30.0	Overweight
More than 30.0	Obese

Due to the following reasons a person gain weights:

Heredity: If both the parents are overweight, then the probability of being overweight of their child is high.
Age: In general with the growing age, person gain weight.
Food Habit: Having high-calorie food from the restaurant, hotel, etc, and irregularity in taking food in time can lead a person to gain overweight.
Hormone interference: Disbalance in the secretion of the Hormones like Thyroxines, GTH, ACTH, etc may be a reason to gain fat in the body.
Inactivity: Less activity with consumption of high-calorie food is a reason for overweight.

Problems due to obesity:

Looks bad.
Decrease lifespan
Astioarterities in knee and waist.
Increase cholesterol in the blood which leads to increase high blood pressure and other heart-related diseases.
Obesity increases the chances to have diseases like diabetes, prostate cancer, colon cancer, breast cancer, breathing problem, etc.
Obesity can create the problem for conceiving.

Things to be considered for the preparation of diet for an adult obese person:

Reason whatever may be, an overweight person should follow a diet planning which helps to decrease weight without disturbing daily nutrient requirements. So appropriate food habit along with a balanced lifestyle with a proper mindset is the necessary requirements for the obese person. Followings are to considered during preparation of diet for an adult obese person:

An obese person should get 800 Kcal to 1000 Kcal less than the requirements which help the person to lose weight. This is known as Weight reducing diet.
When body weight come into normal status, the person should take food of 1500 Kcal to 1800 Kcal which help to maintain the normal weight. This is known as Weight maintenance diet.
Required nutrient such as protein, good fat, vitamin, and mineral should come from the designed diet otherize it will lead to another problem like low immunity, weakness, loss of body stability, etc.

Allowed and avoided food for an adult obese person:

Allowed food: Cucumber, watermelon, carrot, bottle gourd, pumpkin, skimmed milk, meat (Free from animal fat), fish, and fresh vegetables.
Limited allowed food: Rice, potato, mango, banana, nuts, peas, beans, etc.
Avoided food: Oil, cheese, butter, ghee, sugar, Molasses, sweets, jam, jelly, pickles, chocolate, pastry, dry fruits, etc.

Diet chart for an adult obese person:

Diet chart of an adult obese person is tabulated below:

Name of the food product	Amount of food product on a daily basis
Name of the food product	Weight reducing food chart	Weight maintaining food chart
Food grains	150 gm	220 gm
Pulses	100 gm	100 gm
Skimmed milk	350 ml	350 ml
Nuts	30 gm (Only for vegetarian)	60 gm for vegetarian and 30 gm for non-vegetarian
Fish, Egg, Meat (Fat-free)	50 gm (Non-vegetarian)	50 gm for Non-vegetarian
Green vegetables	200 gm	200 gm
Other vegetables	200 gm	200 gm
Root vegetables	50 gm	50 gm
Variety of Fruits	50 gm	50 gm
Fat and oil	15 gm	15 gm
Sugar and Sweets	15 gm	15 gm
Multivitamins supplement	1 each	1 each

Time-dependent daily diet chart for an obese person:

Here we have to distribute the above food quantity in the different time of the day. The principle of the chart shall be having all the essential nutrients from low-calorie and quality food. One example of the time-depended diet chart is given below:

Time	Name of the food product with the amount present in the diet
Morning 6 o’clock	One glass of fenugreek seeds soaked water
Morning 8 o’clock (Breakfast)	Toast 1 piece, 50 gm of Chira, Ripe papaya 100 gm, boiled egg 1 piece, Sugar-free tea 1 cup.
Afternoon 12:30 (Lunch)	Flour made bread 2 pieces, Mixed veg 1 bowl, Fish or meat (Cooked in low oil) 50 gm, Salads, Curd (Prepared from skimmed milk)
Evening at 4 o’clock	Orange lemon or Mosambi with other fruits like grapes, Pomegranate etc.
Evening 5:30 (Tiffin)	Sugar-free tea 1 cup with 2 pieces of cream cracker biscuit.
Night 9 o’clock (Dinner)	Flour made bread 2 piece, vegetables, fish/meat stew, salad.
Night 10 o’clock (Before going to bed)	Skimmed milk 1 cup

The above food chart can be modified but the person should not be in empty stomach for a long time. Food shall be cooked in low oil and low heat. There are several reasons for a person becomes overweight which is already discussed above. With respect to food habit, the above charts can be helpful for a person to reduce/manage the weight.