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Dietary decision support system.

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Bu Sawoo
Bu Sawoo

The document describes a system that provides personalized healthy food and meal plans. It analyzes a person's health information like age, weight, and activity level to calculate their BMI and basal metabolic rate. It then suggests appropriate daily calorie intake and menus tailored to their health goals of maintaining or losing weight. The system database contains food categories and calorie information. It applies BMI, BMR, and activity factor formulas to evaluate suitable menus and help users schedule meals to properly manage their nutrition, weight, and health.

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Nowadays, the majority of people are overweight and obese because modern lifestyle stuffed with all the luxuries and catered with abundance of unhealthy junk foods is responsible for all these health problems. It is not just only health that is suffering. It also related to medical cost. So, all most people should pay more attention and be interested in health by regular exercise and management of good nutrition each meal.
The system provides an effective decision to create healthy food choices and plans in order to help people to lose weight and maintain good health. The system can efficiently analyze healthy food and suggest how to plan of healthcare appropriate with each persons body. The system can make personalized decision for healthier choices in every meal so that the body properly get proper nutrition for each day and suitable with person.
System inputs, including: Health information: gender, age, weight, height and activity level Dietary information: expected weight to achieve a goal and its relative number of days Prepared database Categories of menus and its calories Formulas of calculation, including: BMI BMR Activity factor
Apache Web Server Database: MySQL Language: PHP, HTML, CSS, Javascript
Sampling data of the nutrient_food table
Sampling data of the categories_food table
The system provides the appropriate information about menus and its calories in each day. The menus should be proper to individual needs and preferences as following: For normal weight people maintain weight For overweight people lose weight For lean people gain weight
BMI calculation
BMI evaluation
Range of suitable weight related to normal
The Harris-Benedict equation for BMR: English BMR Formula For Women: For Men: Where: BMR = 655 + (4.35 x w) + (4.7 x h) - (4.7 x a) BMR = 66 + (6.23 x w) + (12.7 x h) - (6.76 x a) w = weight in pounds, h = height in inches, a = age Metric BMR Formula For women: For men: Where: BMR = (9.563 x w) + (1.85 x h) - (4.676 x a) + 655.1 BMR = (13.75 x w) + (5.003 x h) - (6.755 x a) + 66.5 w = weight in kg, h = height in cm, a = age
BMR calculation
Activity Factor 1.2 Lightly Active Light exercise or sports 1-3 days a week 1.55 Moderately Active Moderate exercise or sports 3-5 days a week 1.725 Very Active Hard exercise or sports 6-7 days a week 4 1.9 Definition Little or no exercise and desk job 1.375 Category Sedentary Extremely Active Hard daily exercise or sports and physical job BMR gives the information of the energy spend at the state of resting It has to adjust with the actual activity level Multiply the BMR by a factor called Activity Factor.
Calories needed per day
Suggestive calories
Dietary decision support system.
BMI and BMR formulas are applied as the main mathematical model to evaluate appropriate food menus for the users. It can suggest the range of suitable weight corresponding to normal weight for inputting the expected weight It can offer the options of reducing rate of calories Users can efficiently schedule the meals through this system with its user interface friendly.
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Dietary decision support system.

  • 2. Nowadays, the majority of people are overweight and obese because modern lifestyle stuffed with all the luxuries and catered with abundance of unhealthy junk foods is responsible for all these health problems. It is not just only health that is suffering. It also related to medical cost. So, all most people should pay more attention and be interested in health by regular exercise and management of good nutrition each meal.
  • 3. The system provides an effective decision to create healthy food choices and plans in order to help people to lose weight and maintain good health. The system can efficiently analyze healthy food and suggest how to plan of healthcare appropriate with each persons body. The system can make personalized decision for healthier choices in every meal so that the body properly get proper nutrition for each day and suitable with person.
  • 4. System inputs, including: Health information: gender, age, weight, height and activity level Dietary information: expected weight to achieve a goal and its relative number of days Prepared database Categories of menus and its calories Formulas of calculation, including: BMI BMR Activity factor
  • 5. Apache Web Server Database: MySQL Language: PHP, HTML, CSS, Javascript
  • 6. Sampling data of the nutrient_food table
  • 7. Sampling data of the categories_food table
  • 8. The system provides the appropriate information about menus and its calories in each day. The menus should be proper to individual needs and preferences as following: For normal weight people maintain weight For overweight people lose weight For lean people gain weight
  • 11. Range of suitable weight related to normal
  • 12. The Harris-Benedict equation for BMR: English BMR Formula For Women: For Men: Where: BMR = 655 + (4.35 x w) + (4.7 x h) - (4.7 x a) BMR = 66 + (6.23 x w) + (12.7 x h) - (6.76 x a) w = weight in pounds, h = height in inches, a = age Metric BMR Formula For women: For men: Where: BMR = (9.563 x w) + (1.85 x h) - (4.676 x a) + 655.1 BMR = (13.75 x w) + (5.003 x h) - (6.755 x a) + 66.5 w = weight in kg, h = height in cm, a = age
  • 14. Activity Factor 1.2 Lightly Active Light exercise or sports 1-3 days a week 1.55 Moderately Active Moderate exercise or sports 3-5 days a week 1.725 Very Active Hard exercise or sports 6-7 days a week 4 1.9 Definition Little or no exercise and desk job 1.375 Category Sedentary Extremely Active Hard daily exercise or sports and physical job BMR gives the information of the energy spend at the state of resting It has to adjust with the actual activity level Multiply the BMR by a factor called Activity Factor.
  • 18. BMI and BMR formulas are applied as the main mathematical model to evaluate appropriate food menus for the users. It can suggest the range of suitable weight corresponding to normal weight for inputting the expected weight It can offer the options of reducing rate of calories Users can efficiently schedule the meals through this system with its user interface friendly.