Potassium levels affected by Olive Leaf Extract?

Question;

Since olive leaf extract works as a diuretic, is it possible that using it might lower potassium levels in the blood?

Answer;

It is definitely possible that olive leaf extract lowers potassium levels in the blood due to its significant diuretic properties, especially if taken for a long periods at a time, although a search on the Pubmed website did not yield any information.

Olive leaf extract has been tested extensively in animals and to a lesser extent in humans, without any warnings about potassium levels, however, it may be wise, if taking olive leaf extract long-term, to ensure plenty of potassium in the diet or supplementation if you have a known deficiency.
It would also be useful to be on the look-out for symptoms of potassium deficiency while using olive leaf extract in the long term.

Some of them are:

Weakness and fatigue, muscle cramps, constipation (some people experience this when taking olive leaf extract), heart palpitations, muscle aches, numbness, shortness of breath.

Ref: the following link for more information where these symptoms were sourced.

http://www.livestrong.com/article/92806-symptoms-potassium-deficiency/

Thank you for this question which deserves further consideration. I will keep on the look-out for any new clinical trials done but would recommend assuming it does have an effect on blood potassium levels and include plenty of natural sources of potassium in your food.