If you have any questions we were not able to answer on this page, please feel free to drop us a message: contact@jollygut.com
What is the science behind JollyGut?
There is more to healthy eating than simply counting calories. Over the recent years, nutrition science has progressed rapidly, making it possible to better understand the dynamic interaction between food and the human body. JollyGut's vision is to provide a superior and simple solution to optimize your food choices, by combining evidence based nutritional science with the most recent developments in artificial intelligence.

JollyGut bases its recommendations on guidelines set by the NHS, Public Health England, the Committee on Medical Aspects of Food Policy (COMA), and the Scientific Advisory Committee on Nutrition (SACN).

Most nutrition apps focus on calorie counting and recommended daily intake of various nutrients. JollyGut looks deeper and further, by implementing the following indicators:
  • A measure of 'added sugars' in food. Currently not present on food packaging labels, but is of increasing importance due to its well-documented association with weight gain and obesity.
  • A measure of the degree of food processing. JollyGut generates a NOVA indicator value for each food product, which measures how processed the food product is. With more evidence linking consumption of highly processed foods and development of severe non-communicable diseases, this classification has gained traction on a worldwide basis as a major tool for nutrition and public health policy. (more information is available here).
  • An estimator of cancer risk. This alerts you to the cancer-causing potential of products in your food basket. It relies on the methodology set by Shams-White et al. in "Operationalizing the 2018 World Cancer Research Fund/American Institute for Cancer Research (WCRF/AICR)", available for download here.
  • Coming soon: Macro-recommendations set by the U.S Department of Agriculture (USDA), as described here. These detailed rules are very similar in intent to the UK's Eatwell guide, and provide a sound basis for measuring the nutritional quality of a food basket. Detailed information is available here.
JollyGut does not provide medical advice, and cannot replace the detailed recommendations delivered by your dietitian or your doctor.

With the JollyGut App, you can see food for what it really is: you can ignore the '"noise' created by powerful marketing messages and go beyond information traditionally provided on food labels. By relying on more quantitative measures to understand grocery food (one item or an entire basket), JollyGut contributes to food education and helps make more informed and easier food choices.
What is JollyGut's food score methodology?
JollyGut assigns a score (on a 0-7 scale) and a colour (green, yellow, amber, red) to every food item. JollyGut's methodology is entirely formulaic and its inputs rely on NHS guidelines for energy density, fat, saturated fat, total sugars, added sugars and salt recommended levels (more information is available here) and on NOVA ratings. JollyGut's food scores are objective and independently established: they cannot be influenced by food producers or food distributors.

  • Food products rated red tend to present elevated levels for most of the following indicators: total sugars, added sugars, salt, fat, saturated fat, energy density. These items are more than often ultra processed food products. As a general rule, it is advisable to limit or avoid red products in your diet.
  • Food products rated amber present medium or elevated levels for 3 to 4 of the following indicators: total sugars, added sugars, salt, fat, saturated fat, energy density. These items are often processed food products. Amber products are relatively common. It is best to limit consumption and swap to healthier alternatives whenever available.
  • Food products rated yellow present medium or elevated levels for 1 to 2 of the following indicators: total sugars, added sugars, salt, fat, saturated fat, energy density. These items are often processed food products. Yellow products are very common. It is not realistic to eliminate them entirely from your shopping basket.
  • Green products are generally considered healthy. These items mostly belong to minimally-processed or unprocessed foods, and tend to be low in energy, fat or sugars.
How do JollyGut's food alternative suggestions work?
JollyGut compares food scores between products in order to help you find better alternatives to any food product of your choosing. Up to three types of suggestions are available:
  • "The best product": the product within the same food category with the highest food score, irrespective of its price.
  • "Comparable prices - Better quality": products with higher food scores, within a price range around the initial price.
  • "Comparable products - Lower price: products with a lower price and with nutritional qualities very close to those of your initial choice. In this case, the food scores of alternative options may be slightly lower than the initial food score.
Suggestions depend on users' filters and preferences: different choices may be offered to users with different filters and preferences. JollyGut's vision is to offer personalized guidance based on users' individual food shopping history.
How is JollyGut financed?
JollyGut intends to rely on two sources of revenue to fund its development:
  • Paid subscriptions by users: Alongside JollyGut's freemium model, JollyGut will be offering a paying model with extended functionalities.
  • Commissions on shopping orders placed by users with partner retailers, and possibly on fees for sponsored recommendations by food producers.
Which food venues are available on JollyGut today?
JollyGut can be used in Tesco, Morrisons, Sainsbury's stores and websites. All major food retailers and online leaders will be available in the coming months.