<P> The modern business of producing bottles in the developed world is substantial: in 1999 it was reported that the UK "feeding and sterilising equipment sector...stands at £ 49m...(where) (s) ales of feeding bottles account for 39%" or £ 19.1 m of that market . </P> <P> The 2014 summary policy statement of the American Academy of Pediatrics (AAP) makes no specific mention of bottle feeding, but makes clear that "(b) reastfeeding and human milk are the normative standards for infant feeding and nutrition", and refers to decisions regarding the supply of infant nutrition as "a public health issue and not only a lifestyle choice...(g) iven the documented short - and long - term medical and neurodevelopmental advantages of breastfeeding". The AAP policy recommends breastfeeding exclusively for six months, continuing it with introduction of complementary foods, with an overall duration of "1 year or longer as mutually desired by mother and infant". The body of the policy statement notes and cites literature indicating that, in addition to the importance of mother's milk, the manner of the food delivery has implications: that "breastfed infants self - regulate intake volume", whereas bottle - fed infants receiving expressed breast milk or formula have "increased bottle emptying, poorer self - regulation, and excessive weight gain in late infancy", and that such early practice of self - regulation correlate with adult patterns of weight gain (ibid .). </P> <P> The AAP policy notes that "(m) edical contraindications to breastfeeding are rare". The transmission of some viral diseases through breastfeeding is reportedly preventable, e.g., by expressing breast milk and subjecting it to Holder pasteurization . </P> <P> In response to public pressure felt from policies de-emphasizing bottle - and formula - feeding, efforts have arisen to support mothers experiencing physiologic or other difficulties in breastfeeding, and sites include individual views that attempt to weaken the scientific case of the AAP policy; a book of the personal experiences and views of one mother committed to bottle / formula feeding, Bottled Up, by Suzanne Barston, has appeared . </P>

When did they stop making glass baby bottles