Mixed diets

17 day diet
ABS Diet

Asian Diet

1. https://www.who.int/news-room/fact-sheets/detail/healthy-diet

Flexitarian Diet

1. Emma J. Derbyshire, 2017. Flexitarian Diets and Health: A Review of the Evidence-Based Literature.

Keto Diet

1. Jennifer T Batch, Sanjay P Lamsal, Michelle Adkins, Senan Sultan and Monica N Ramirez, 2020. Advantages and Disadvantages of the Ketogenic Diet: A Review Article.

Dukan Diet

1. Joanna Wyka, Ewa Malczyk, Marta Misiarz, Marzena Zołoteńka-Synowiec, Beata Całyniuk, Sandra Baczyńska, 2015. Assessment of food intakes for women adopting the high protein Dukan diet.

GAPS Diet

1. Ultra-processed food intake and risk of cardiovascular disease: prospective cohort study (NutriNet-Santé), 2019.
2. Koutnikova, Bernd Genser, Milena Monteiro-Sepulveda, Jean-Michel Faurie, 2018. Impact of bacterial probiotics on obesity, diabetes and non-alcoholic fatty liver disease related variables: a systematic review and meta-analysis of randomised controlled trials.

Atkins Diet

1. Eric H Kossoff, Jennifer L Dorward, 2008. The modified Atkins diet.

Volumetrics Diet

1. The Ultimate Volumetrics Diet: Smart, Simple, Science-Based Strategies for Losing Weight and Keeping It Off. The American Journal of Clinical Nutrition, Volume 96, Issue 3, September 2012.

WeightWatchers Diet

1. Jenna Carlson, 2014. Of the Most Common Weight-loss Programs, Weight Watchers, Jenny Craig, Nutrisystem, and Medifast, which is the most effective?

Proteins, Fats, Carbohydrates description

The 2015–2020 Dietary Guideline for Americans recommends that carbohydrates comprise 45–65% of calories, fat 25–35% of calories, and protein 10–30% of calories

1. https://health.gov/our-work/nutrition-physical-activity/dietary-guidelines/previous-dietary-guidelines/2015

Proteins, Fats, Carbohydrates, Energy (KCAL) distribution

1. Suzanne P. Murphy, Ann L. Yaktine, Carol West Suitor, Sheila Moats, 2011. Child and Adult Care Food Program: Aligning Dietary Guidance for All. Institute of Medicine (US)

Sugar recommendations
In both adults and children, WHO recommends reducing the intake of free
sugars to less than 10% of total energy intake (50 grams per day on average)
(strong recommendation)

1. World Health Organization. Guideline: Sugars intake for adults and children. Geneva, 2015

Trans fat information and recommendations

1. Wang Q, Afshin A, Yakoob MY, Singh GM, Rehm CD, Khatibzadeh S, et al. Impact of nonoptimal intakes of saturated, polyunsaturated, and trans fat on global burdens of coronary heart disease. Journal of the American Heart Association. 2016;5(1):e002891.
2. De Souza RJ, Mente A, Maroleanu A, Cozma AI, Ha V, Kishibe T, et al. Intake of saturated and trans unsaturated fatty acids and risk of all cause mortality, cardiovascular disease, and type 2 diabetes: systematic review and meta-analysis of observational studies. BMJ. 2015;351:h3978.
3. Brouwer IA. Effect of trans-fatty acid intake on blood lipids and lipoproteins: a systematic review and meta-regression analysis. World Health Organization 2016.
Fiber recommendations
This is consistent with current recommendations. For instance, the United States National Academy of Sciences, Institute of Medicine recommends that “adult men ages 14–50 consume 38 grams of dietary fiber per day, men 51 and older 30 grams, women ages 19–50 to consume 25 grams per day, women 51 and older 21 grams.”

1. National Academies of Sciences, Engineering, and Medicine. 2005. Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids. Washington, DC: The National Academies Press.

Fats, PUFA (polyunsaturated), MUFA (monounsaturated), SFA (saturated) description

1. Patty W. Siri-Tarino, Sally Chiu, Nathalie Bergeron, and Ronald M. Krauss, (2016), Saturated Fats Versus Polyunsaturated Fats Versus Carbohydrates for Cardiovascular Disease Prevention and Treatment

All Vitamins and Minerals and Others description are gathered from WHO "Vitamin and mineral requirements in human nutrition"

1. World Health Organization and Food and Agriculture Organization of the United Nations 2004

Water intake norm

1. Evan Johnson, Lawrence Armstrong (2018), Water Intake, Water Balance, and the Elusive Daily Water Requirement
2. Institute of Medicine. Dietary reference intakes for water, potassium, sodium, chloride, and sulfate; Institute of Medicine: Washington, DC, USA, 2005

Human basal metabolism (calories intake calculator)

1. D C Frankenfield, E R Muth, W A Rowe (1998). The Harris-Benedict studies of human basal metabolism: history and limitations.

Body fat percentage and body mass index

1. World Health Organization. Obesity and overweight.
2. Hodgdon, James & Friedl, Karl. (1999). Development of the DoD Body Composition Estimation Equations.
3. Jackson AS, Stanforth PR, Gagnon J, et al. The effect of sex, age and race on estimating percentage body fat from body mass index. The Heritage Family Study. Int J Obes Relat Metab Disord. 2002;26(6):789-796. doi:10.1038/sj.ijo.0802006
4. Gallagher D, Heymsfield SB, Heo M, Jebb SA, Murgatroyd PR, Sakamoto Y. Healthy percentage body fat ranges: An approach for developing guidelines based on body mass index. Am J Clin Nutr. 2000;72(3):694-701. doi:10.1093/ajcn/72.3.694
5. Hall KD. Body fat and fat-free mass inter-relationships: Forbes's theory revisited. Br J Nutr. 2007;97(6):1059-1063. doi:10.1017/S0007114507691946

The method of determining the percentage of body fat in the photo step by step
0) All calculations of body fat are made according to the YMCA methodics. The YMCA uses data on gender, body weight and waist circumference

YMCA Formula For Men:
((4.15 × waist - 0.082 × weight - 98.42) / weight) × 100

YMCA Formula For Women:
((4.15 × waist - 0.082 × weight - 76.76) / weight) × 100

1) Collecting inputs to formula.
1. Gender data is collected during registration
2. Body weight is also collected at the time user registration
3. The weist circumference is gathered via user's attached photo
a) We use one of the most commonly used computer vision algorithms SOTa to segment RCNN images to detect human body parts (key points)
If we find 4 necessary points: left hip, right hip, forehead and toe, we can proceed to the next step
b) We calculate photo's scale = (height_model * 1.025) / height, where height_model is difference between forehead and toe on the Y-axis
c) Now we can find hip_girth_cm = girth * hips_model * 1.15 / accuracy, where girth*1.15 is aproximate relation between hip length and hip girth,
hips_model - difference between right and left heap on the X-axis
4. We apply all collected raw data to the YMCA formula and return the percentage of body fat

Sources

1. Generalized equations for predicting body density of men. 1978 A S Jackson , M L Pollock
2. Mask R-CNN Kaiming He, Georgia Gkioxari, Piotr Dollár, Ross Girshick