Given karen's long-term coffee habit, her supplementation with lots of calcium, and history of chronic fatigue and headaches, what trace mineral is she most likely deficient in?

She is most likely deficient in Magnesium.

Explanation:

Magnesium is a mineral that boosts the energy levels in a body. It regulates the muscles and the nerves functions. It controls Blood Pressures and Blood Glucose. Long term use of caffeine enriched products like coffee or tea will lead to lowering of the Magnesium levels in the body. Thus lower levels of Magnesium cause fatigue and severe headaches which is truly a part in Karen's report. So Lower levels of Magnesium caused such problems to her health.

it means your tired?

i need the a b or c but mental disorders include repetitiveness,unable to listen, wanting to kill people, thinking that you are perfect, sexuality toward the wrong age types younger than you like a child bad reputations cutting yourself abuse! these are sad but these are true! the titles for some of these are ptsd and adhd. you need to go to jail or get an expert counselor if you face any of these problems or if you have indeed been involved!