web hi res 512

EasyFPU for Android

An Android app - mainly for Type 1 Diabetes patients - to ease the calculation of carbs, fat-protein-units (FPUs) (aka extended carbs, e-carbs or fake carbs) and their matching absorption time.

The absorption scheme defines, which absorption time is proposed for a given amount of FPUs. The pre-defined absorption scheme matches today‘s recommendations from nutrition science and is as follows:

  • 1 FPU (= 10g extended carbs): 3 hours absorption time
  • 2 FPUs (= 20g extended carbs): 4 hours absorption time
  • 3 FPUs (= 30g extended carbs): 5 hours absorption time
  • 4 FPUs (= 40g extended carbs): 6 hours absorption time
  • 6 FPUs (= 60g extended carbs) and more: 8 hours absorption time

The calculation logic is as follows:

Step 1: Calculation of the total calories, e.g. for 72g Chicken McNuggets (249 kcal per 100g): 72g * 249 kcal / 100g = 179 kcal

Step 2: Calculation of the calories caused by carbs (4 kcal per 1g of carbs), e.g. for 72g Chicken McNuggets (17g carbs per 100g): 72g * 17gCarbs / 100g * 4 kcal/gCarbs = 49 kcal

Step 3: Substract the calories caused by carbs from the total calories, e.g.: 179 kcal - 49 kcal = 130 kcal

Step 4: As 100 kcal represent 1 FPU, this results in 1.3 FPUs respectively 13g of extended carbs.

Step 5: The FPUs will be rounded, in our example to 1 FPU, and the absorption time will be looked up, in our example 3 hours.

thumb EditAbsorptionschemeActivity EnEditing the absorption scheme is only recommended for advanced users, who have experience in FPUs / absorption time. The absorption scheme can always be reset to the pre-defined scheme above. 

We use cookies on our website. Some of them are essential for the operation of the site, while others help us to improve this site and the user experience (tracking cookies). You can decide for yourself whether you want to allow cookies or not. Please note that if you reject them, you may not be able to use all the functionalities of the site.