From Cornucopia Institute (re dha in formula): http://cornucopia.org/index.php/infa...ethical-cloud/
While FDA officials had previously noted studies that reported diarrhea, flatulence, jaundice, and apnea in infants fed DHA/ARA-supplemented formula, they nevertheless did not block the use of the oils. That action gave the green light for infant formula manufacturers to add the oils to formula. Today, Martek boasts that 90% of formula in the U.S. contains its patented DHA- and ARA-containing oils.
from kellymom on dha in formula: http://www.kellymom.com/nutrition/mi...-comments.html
The below is copied from the baby's only site, so keep that in mind: http://www.naturesone.com/dairy.php
Baby’s Only Organic® Toddler Formulas do not contain C. cohnii oil (algae) & M. alpina oil (fungus) used in organic infant formulas, which are treated with hexane solvent, acid, and bleach. Parents should be aware of the following:
In 2001, US infant formula manufacturers began adding a novel source of DHA and ARA that is manufactured by Martek Biosciences Corp. This DHA is derived from strains of algae; the ARA is manufactured using a non-toxigenic soil fungus. In 2006, organic infant formula companies began promoting their use of this same ingredient. The following is the manufacturing process described by Martek:
“The oil is then separated from the dried biomass by hexane extraction and centrifugation and/or filtration, followed by winterization. The hexane phase undergoes additional centrifugation/filtration to remove solids then the winterized oil is heated and treated with acid. Subsequently, the oil is treated with caustic, centrifuged, bleached and deodorized.”
Earth’s Best®, the Wal-Mart® Brand, and Similac® Organic are lower in the essential fatty acid, Linoleic Acid; the Alpha-Linolenic fatty acid composition is lower or not stated on the formula labels. These precursor fats are important for the body to convert to DHA & ARA and are critical to brain and eye retina development. In fact, the makers of Similac supported a study1 comparing breast fed infants to three formulas described below:
A formula containing no added DHA & ARA, but contained higher levels of linoleic acid and alpha-linolenic acid similar to Baby’s Only Organic® Toddler Formula.
Two formulas supplemented with synthetic DHA and ARA that contained lower levels of linoleic and alpha-linolenic acid.
The results of this study did NOT support adding synthetic DHA & ARA to formula that contained the higher levels of linoleic acid and alpha-linolenic acid. However, Nature's One® recognizes that some babies may not be as efficient at converting linoleic and alpha-linolenic acid and recommends supplementation with Baby's Only Essentials® DHA & ARA. The synthetic DHA & ARA used to supplement Earth's Best®, Wal-Mart’s Brand, and Similac® Organic infant formulas are treated with hexane solvents, acid and bleach during the manufacturing process.