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EAT => Food Allergies => Topic started by: hcates on January 10, 2008, 18:09:24 pm

Title: Whey protein vs. cow's milk protein
Post by: hcates on January 10, 2008, 18:09:24 pm

I have been dairy free (including hidden forms) since DD was 7 weeks old.  She is now 5 months.  We are supplementing with Good Start which has whey protein in it.  Does anyone know what the difference is b/t cows milk protein and whey protein?  I want to try some dairy back in my diet but am afraid of what may happen.  DD is tolerating the GS very well so I'm thinking she may be ok with me eating dairy.

Thoughts?

Thanks,
Heather

Title: Re: Whey protein vs. cow's milk protein
Post by: Sarah² on January 10, 2008, 18:32:59 pm

I don't know exactly but know when I was completely dairy free for Lily, I avoided whey as well as all other sources of dairy. If she's been okay with GS, I'd give it a try in your diet to see how she does. If its a problem you can just remove it from your diet again.

Title: Re: Whey protein vs. cow's milk protein
Post by: Jimbob on January 10, 2008, 19:52:23 pm

Hi Heather, I have just read your post and though this information might help.

Milk Allergens
Milk contains many protein fractions (allergens) that cause allergic reactions. The two main components are whey and casein, and an individual may be allergic to either or both. The casein is the curd that forms when milk is left to sour, and the whey is the watery fraction which is left after the curd is removed.


The whey fraction (20%) contains mainly alpha-lactalbumin and beta-lactaglobulin and is most likely to produce the IgE-antibodies (Immunoglobulin E) and causes the most clinical problems. These IgE-antibodies can be tested for in the blood, and by skin prick testing. The whey proteins are altered by high heat, and so the whey sensitive person maybe able to tolerate evaporated, boiled or sterilised (Long Life) milk and milk powder.


Casein (80%) is heat stable and is the most important allergen in cheese. The harder the cheese, the more casein is formed. This is the least allergenic for those individuals allergic to the whey fraction. Extensive heating may reduce only, but not eliminate, the allergenicity of the protein fractions.

If your lo is ok with the good start then you could try adding very small amounts of dairy to your diet. I would go very slowly though so you can monitor her reactions carefully. Sometimes they can tolerate a little but when it builds in their system it becomes too much and they react. If you decide to try it I hope it goes well.

Kelly