How do I know what a serving size really is?
Find what amount the label describes, then check your portion.
On a US food label, serving size reflects an amount people tend to eat. It is not a rule for how much you should eat.
The numbers usually describe that serving. A pack may hold more than one. Some labels also show a whole-pack column.
Here is a made-up example: a bag holds three servings. Each has 120 calories. Two servings have 240; the whole bag has 360.
- Read the serving size, including the unit, such as grams or cups.
- Read the number of servings in the pack.
- Find which column matches the amount you want to check.
- Use a calculator to check any math ChatGPT gives you.
Explain this made-up label in plain words: one serving is 30 grams and has 120 calories. The bag has three servings. Show the calories for two servings and the whole bag. Do not set a food goal for me.
Paste the message into ChatGPT, then fill in any blanks before you send it. ChatGPT opens in a new tab. Opening it does not send the message.
If the label already lists the whole pack, do not multiply that column again.
Sources and more help
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