- 05 Jun 2023
- 4 Minutes to read
- Updated on 05 Jun 2023
- 4 Minutes to read
Intermittent fasting (IF) is a practice often used in combination with a low-carb or ketogenic diet. This article describes how Premium members can set and track fasting goals, log foods and supplements during a fast, and view and analyze fasting trends.
Carb Manager includes several standard fasting programs, such as 12:12, 16:8, the Warrior Diet, or OMAD, or you can create a custom program. Each standard program runs seven days a week until you stop it. With a custom program, you can set custom fasting and eating windows for the full week, weekdays only, weekends only, or for specific days of the week.
Watch: How to Set Up Intermittent Fasting in Carb Manager
1. Start a fasting program, set a goal
When you start a standard or custom fasting program, Carb Manager automatically sets a goal based on your fasting window to help you track your progress over time.
- Go to Settings > Intermittent Fasting and select one of several standard programs or create a custom program.
For more information, see the following articles:
2. Log food within your eating window to maintain your fast
- Go to the Daily Log, find a food, and log a food within your eating window.
3. Flexible fasting -- Adjusting eating and fasting windows and timestamps
If you intend to eat outside of your current eating window and don’t want to break your fast, you must be mindful of two things.
- Adjust the eating window to match the change. For example, if your 8-hour eating window begins at 11:00 AM but you decide to start eating at 10:00 AM, adjust the start of the eating window using the daily log Intermittent Fasting timer. You can also lengthen or shorten your eating window to shorten or lengthen your fast.
- Adjust the timestamp before you log a food that you consumed at a time other than the current time of day. Open a food's detail screen, and select Show Advanced to see the food's time setting. Then select the clock and change the hours, minutes, or AM/PM to the desired time. If you forget to change the time before logging, you can also change the time after logging food. Regardless of how you change your timestamp, Carb Manager will adjust your eating and fasting windows accordingly. Though eating and fasting windows are in 30-minute increments, the summary info will record down to one-minute increments based on food timestamps.
4. Mark each day as complete (optional)
- When you finish logging food and supplements each day, go to the Daily Log and select I’m Done Logging Today.
5. View and analyze your fasting over time
Complete the following steps to view progress charts of your fasting hours and eating hours over periods of time.
- Go to Goals in the main menu.
- In the Progress tab, select Change to view categories of all measurements that are available.
- In the All Measurements screen, select Lifestyle.
- In the Lifestyle screen, select Eating Hours Per Day or Fasting Hours Per Day.Note: Fasting time is calculated as the time before you started eating and the time after you finished eating, starting at 12:00 am and ending at 11:59 pm each day. Basically, fasting shows the opposite of your eating window. For example, if you are on a 16:8 fasting schedule, you'll want to keep your fasting time close to 16 hours.
Since a fasting period typically spans two dates, this can cause confusion when reading the fasting or eating hours on the charts. Today’s date will not show your total eating and fasting window hours until tomorrow. Instead, you will see a zero.Tip: Select the heart next to a measurement to add the item to your list of favorite measurements.Tip: For more information about tracking progress over time, see View progress and gain insights toward goals.