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Dieticians say that many people have a vitamin D deficiency, and a simple blood test can tell you for sure. However, some warning signs of a deficiency can include fatigue, bone pain, muscle weakness, and mood changes. When it comes to getting enough of the so-called "sunshine vitamin" this winter, certain foods can help. Fatty fish like salmon, tuna, mackerel, and sardines are all good options.

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Processed foods are convenient for a fast meal, but research continues to show how they can negatively impact our health.  Recently, a study revealed ultra-processed foods might increase colorectal cancer risk for some people.

The study found men who ate the most ultra-processed foods had a 29% higher risk of developing colorectal cancer when compared to men who ate the least. Dieticians say the study did not find the same association in women, and it's unclear why.