What is the last random fact you learned that solved your health issues?

Today I had huge hunger when I finished my lunch and I did not know if my body was nutrient deficient or if I was not eating enough and then I learned through an instagram doctor, that hunger after eating is one of the first signs you are deficient in fibre, so I ate 3 pieces of fruit and my hunger went away.

What is the last random fact you learned that solved your health issues?
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