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Blood Chemistry

If the Cyrex shows red for all dairy markers, so that includes casein, cow’s milk, casomorphin, butyrophilin, but it’s green for whey protein. Should the patient try introducing whey protein? The patient has low glutathione and may benefit from whey.

Dr. Amy Nett: I think it’s reasonable to try introducing whey protein. So if there are no antibodies out of...

I often get conflicting findings when I order serum MMA, B12, homocysteine and CBC MCV. Can you help me understand what to do when MMA is low and other markers are higher, vice versa?

Chris Kresser: Yeah, so good, that’s par for the course. I also get conflicting markers there. I don’t know that...

We haven’t covered lipids yet in the blood chem unit but curious if you have protocol for decreasing LDL particle number in a 62-year-old male patient following Paleo template diet. Lab values: total cholesterol, 266; HDL, 77; triglycerides, 78; LDL, 173; LDL particle number, 1,879; gut test pending; DUTCH, high nighttime cortisol and cortisone, low testosterone, high estrogen.

Chris Kresser: Yeah, so hang tight. We’re going to go into detail on that in the lipid section of blood...

Is serum a good way to measure selenium as mentioned in week 37 re: baseline testing before supplementation?

Chris Kresser: Serum is okay for selenium. Actually toenail selenium is the best marker for selenium status. Hair selenium is...

Naturally high vitamin D level of 75, male, 45, eats relatively clean diet with fatty fish or seafood once every two to four weeks. Rarely eats organ meats, some bread and pasta at times, active in outdoor pursuits, but careful to use sunscreen due to multiple BCC. Not supplementing with cod liver oil or vitamin D. Is it possible to have vitamin D, 25(OH)D level of 75? Would you consider this normal or not?

Chris Kresser: There are some studies that were done on lifeguards in Israel, where they had pretty high vitamin D...