lunes, 5 de abril de 2010

Chia vs Flax

Human consumption of flax oil is banned in France and used with limitations in Germany, Switzerland and Belgium (Le Conseil d'Etat, 1973).

Enriched diet with flaxseeds levels as low as 5% only, shown to be enough to produce adverse effects on feed consumption (Scheideler and Froning, 1996; Caston et al., 1994).

These effects are attributable to the presence of antinutritional factors, including vitamin B6 antagonist, cyanogenic glycosides, trypsin inhibitors, phytic acid, allergens and goitrogens, in flaxseeds (Treviño et al., 2000; Bhatty, 1993; Madhusudhan et al., 1986).

Due to the fact that flax is known as the SDG richest resource, which acts as estrogenic depressor or potentiator in mammals, recent research have warned on the negative action that flax can have on pregnancy and reproductive development.

A number of scientists from Europe, Canada and USA, show a strong evidence about the negative effects of flaxseeds diets used in laying hens, not present when using chia seeds.

Comparing chia and flaxseed as a source of omega-3 fatty acid in laying hens, reported a higher feed conversion (7%) for chia enriched diets, than for flaxseed enriched diets (Ayerza and Coates, 2001b).

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