Nestlé (NESN.S) is ramping up its M&A dosage. The Swiss food giant is buying brands such as Solgar and Puritan’s Pride from supplement maker The Bountiful. The desire to boost immunity during ...

The Endocrine Society recommends 1,500–2,000 IU (37.5–50 mcg) per day, from supplements and foods, for adults and 600–1,000 IU (25 mcg maximum) for children.