What type of beta-casein does BioTrust Low Carb contain?Updated 8 months ago

BioTrust Low Carb contains both the A1 and A2 variants of beta-casein.nbsp;Beta-caseinnbsp;proteins make up approximately 30% of the total protein of cowsrsquo; milk and may be present as one of two major genetic variants: A1 andnbsp;A2, the two primary types of beta-caseinnbsp;(although there are others present).nbsp;Either or both of these types may be expressed in cowsrsquo; milk depending on the individual cowsrsquo; genetic makeup. Cows may be homozygous for one type, or heterozygous with allelic co-dominance resulting in both types being expressed in milk.nbsp;

For instance, cows that are homozygous for thenbsp;A2nbsp;genotype contain only thenbsp;A2nbsp;beta-caseinnbsp;type (i.e., no A1 beta-casein).nbsp;Purebred Asian and African cattle produce milk containing only thenbsp;A2nbsp;beta-caseinnbsp;type, although some cattle presenting phenotypically as Asian or African cattle may produce A1 beta-caseinnbsp;as a consequence of crossbred ancestry. Milk containing only the A1 beta-caseinnbsp;type is not commercially available for consumption; generally speaking, the majority of commercially available milk products contain a mixture of both the A1 andnbsp;A2nbsp;beta-caseinnbsp;types unless specifically marketed as ldquo;A2nbsp;milk.rdquo;nbsp;

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