This thread is going on for a while. Yes, cheese is very salty, and excess salt causes symptoms for some people. I will add that it's possible for a person to have lactose (milk sugar) intolerance or casein (milk protein) intolerance, which would make cheese very irritating to the digestive tract.
Many people who have PVCs complain that when they have indigestion, their PVCs increase. To me, it's not beyond the realm of comprehension that PVCs could be a symptom, and maybe in some cases, the only symptom of which the individual is aware, of food intolerance.
Magnesium is in virtually every food you eat, and the kidneys are amazingly efficient at keeping the right levels in the blood. You hold around 25g of this element in your bones/soft tissue. Magnesium aids over 300 important functions in the body and for it to give just one symptom is unlikely. There is no real accurate test for magnesium levels, because only a small amount is suspended in the blood and the rest is hidden in bone/tissue.
You would have to take a huge amount of magnesium to feel any effect because the kidneys are very efficient at removing any excess in the Urine.
What you say about cheese makes perfect sense, LOADS of pvc sufferers complain of increased symptoms after consuming cheese. I have no idea what's in the cheese to do this, but the extreme high level of salt could be the culprit.
If I take magnesium supplements my AF is worse
If you have too much calcium you actually deplete your magnesium. And when magnesium levels get too low, the heart rhythm is affected.
"Magnesium deficiency can cause muscle weakness, tremor, and spasm. Your heart is a muscle. If you get a spasm or tremor in your heart, you’re in trouble. In fact, magnesium deficiency can cause arrhythmias such as atrial fibrillation, irregular contraction, and rapid heart rate."
good point, never thought of the salt, good call.
It might be the salt that is causing your issues. Cheese is simply loaded with it.