Nathan is a 25-year-old male who is seen due to skin flushing and very low blood pressure. He reports being healthy overall but lately he has been having a hard time completing his running workouts due to dizziness and a headache - and having a flushed face is getting embarrassing. He is just started training for his first 5K. He is so happy he found this passion that he hired a coach. His coach has been going on and on about the importance of a substance called NAD that is key to having energy saying, "vitamins are life and energy". Nathan doesn't really understand but realizes his post-college diet is not as well-balanced as he would like. He reports his coach is a real "health nut" that developed his own supplements. He has him on a supplement regiment that gives him 10x the RDA of some B vitamins (he doesn't remember which ones) but thinks more must be better. 1. Diagnosis: What is the micronutrient (vitamin or mineral) involved? Is this a deficiency or a toxicity? 2. Discuss why B-vitamins are often considered to give energy. Is this accurate? 3. Discuss the RDA and UL for this vitamin and why Nathan is experiencing these symptoms. What would you recommend he do to alleviate his symptoms? Nathan is a 25-year-old male who is seen due to skin flushing and very low blood pressure. He reports being healthy overall but lately he has been having a hard time completing his running workouts due to dizziness and a headache - and having a flushed face is getting embarrassing. He is just started training for his first 5K. He is so happy he found this passion that he hired a coach. His coach has been going on and on about the importance of a substance called NAD that is key to having energy saying, "vitamins are life and energy". Nathan doesn't really understand but realizes his post-college diet is not as well-balanced as he would like. He reports his coach is a real "health nut" that developed his own supplements. He has him on a supplement regiment that gives him 10x the RDA of some B vitamins (he doesn't remember which ones) but thinks more must be better. 1. Diagnosis: What is the micronutrient (vitamin or mineral) involved? Is this a deficiency or a toxicity? 2. Discuss why B-vitamins are often considered to give energy. Is this accurate? 3. Discuss the RDA and UL for this vitamin and why Nathan is experiencing these symptoms. What would you recommend he do to alleviate his symptoms