How many calories in ONE single M and candy?

It's impossible to give you the exact calorie count for a single M&M without knowing which type of M&M you're asking about. There are many different varieties, each with its own calorie content.

Here's what you can do to find the information:

1. Check the M&M's packaging: The nutrition information, including calories per serving, should be listed on the back of the bag.

2. Look online: Search for "M&M's nutrition facts" on a search engine, and specify the type of M&M you're interested in (e.g., "plain M&M's nutrition").

3. Visit the M&M's website: They usually provide detailed nutrition information on their website.

Once you have the calorie count per serving, you can easily calculate the calories for a single M&M.