What effect does skipping a meal have on short term blood pressure reading? can skipping a meal cause bp to go up instantly, esp if it is breakfast?

None: It does not directly effect blood pressure at all. Skipping meals has more effect on overal metabolism and weight . Skipping meals makes it harder to lose weight and easier to gain weight and as we know obesity tends to raise blood pressure.

High BP: Skipping breakfast, although not advised, should not have an effect on a blood pressure reading.