You know the feeling — you’ve got an important meeting and the first thing you find when you look in the mirror is a pimple. The day is ruined.

Instead of reaching for topical face products or medicines to zap out these pesky bumps, it may be a better idea to reevaluate your diet.

A study from researchers at the University of California, Los Angeles revealed that vitamin B-12 may have an impact on how genes in facial bacteria operate in some people. The facial bacteria were shown to be more active in some participants, which led to inflammation and, ultimately, pimples.

The researchers found that participants who had high levels of B-12 also had bacteria on their faces that seemed to respond by sending out chemicals linked to inflammation.

Inflammation can lead to acne.

Of course, the researchers say it’s too soon to tell if too much B-12 is actually causing breakouts. Controlled trials would be needed to determine cause and effect.

However, if you are concerned about how much B-12 you should be getting through food and supplements, ask your doctor. B-12 is a beneficial vitamin that is an essential nutrient for red blood cells, nerve function and DNA synthesis.

There are many ways to help keep your skin clear, too. Make the effort to include foods in your diet that promote healthy skin. Drinking plenty of water and eating tomatoes, bell peppers, avocados, dark greens and turmeric can help promote healthy skin.

If you are experiencing an unusual bout of acne, it might be a good idea to skip out on the barbecue buffet and pass on the bag of chips. Instead, reach for something lighter.

Other acne-fighting tricks include keeping your cell phone clean, not over-washing your face and not picking at your skin.