Phosphorus daily needs, food sources, phosphate additives, upper limits, risks in kidney disease and interactions with antacids and laxatives. Based on NIH.

Manganese daily needs for men, women and pregnancy, food sources, deficiency, the 11 mg adult upper limit and toxicity from water or dust. Based on NIH.

Pantothenic acid (vitamin B5) daily needs, food sources, deficiency, safety at high doses and supplement forms. Based on NIH guidance.

Biotin (vitamin B7) daily needs, food sources, deficiency signs, who is at risk, and how high-dose biotin can distort thyroid and other lab tests. Based on NIH.

Copper daily needs, food sources, deficiency and who is at risk, the 10,000 mcg upper limit, zinc and copper balance, and Wilson disease. Based on NIH guidance.

Niacin (vitamin B3) daily needs, food sources, pellagra, flushing from nicotinic acid, upper limits and medicine interactions. Based on NIH guidance.

Riboflavin (vitamin B2) daily needs, food sources, deficiency signs, who is at risk including vegans, and supplement safety. Based on NIH guidance.

Thiamin (vitamin B1) daily needs, food sources, deficiency and beriberi, who is at risk, and medicines that lower thiamin. Based on NIH guidance.

Choline daily adequate intake for men, women and pregnancy, best food sources, deficiency and liver effects, the 3,500 mg upper limit and supplement forms. Based on NIH.

Vitamin B6 daily needs, food sources, deficiency signs, nerve damage from too much, 100 mg upper limit, and medicine interactions. Based on NIH guidance.