Hi All There have been several studies referring to the introduction of solids past 6 months of age. Most have examined the health/iron levels of babies who are exclusively breastfed past 6 months of age. The Lactation Resource Centre in Australia has just published a literature review on this topic. Their email address is: [log in to unmask] Other references (which are used in this paper from the LRC) are: Borresen 1995 Rethinking current recommendations to introduce soloid food between four and six months to exclusively breastfed infants. J Hum Lact 11(3): 201-204 Whitehead 1995 For how long is exclusive breastfeeding adequate to satisfy the dietary energy needs of the average young baby? Pediatr Res 37(2): 293-243 Pastel et al 1981 Iron sufficiency with prolonged exclusive breastfeeding in Peruvian infants. Clin Pediatr 20(10):625-626. Taren and Chen 1993 A positive association between extended breastfeeding and nutritional status in rural Hubei Province, People's Republic of China. Am J Clin Nutr 58(6): 862-867. All these articles are very positive about exclusive breastfeeding beyond 6 months. If you would like further references please email me so that I can send them to you. Hope this helps Fiona Coombes MBBS IBCLC ([log in to unmask]) Perth Western Australia