Vitamin d testing

Testing vitamin D helps prevent deficiency and supports immune and developmental health.

Strong consensus

For vitamin d metabolism and testing.

Sourced from the doctors, PhDs and clinicians behind Entrain. Updated

The strongest voice

“His vitamin D level was almost non-existent... vitamin D caused him to have a low calcium level in his blood which caused him to have a convulsion”

a licensed acupuncturist and clinician-educator · source video · 00:18:00

In their own words

One faithful sentence per source, linked to the moment it was said; quiet chips mark where money is involved.

a licensed acupuncturist and clinician-educator recommend
“Vitamin D deficiency in pregnant women leads to insufficient vitamin D in breast milk, impacting infant health.”

a licensed acupuncturist and clinician-educator · source video · 00:00:10

a Princeton-trained molecular biology PhD recommend
“Vitamin D is critical for calcium homeostasis affecting enamel and bone health; many children with cavities are deficient”

a Princeton-trained molecular biology PhD · source video · 00:14:32

a molecular biology PhD recommend
“Measuring only storage vitamin D (25D) is misleading because active vitamin D (1,25D) is the biologically functional molecule and often not measured, leading to false assumptions about deficiency.”

a molecular biology PhD · source video · 00:33:00 sponsored

a clinical nutritionist against
“Vitamin D levels are naturally low in winter due to environmental factors, so testing then gives an artificial impression of deficiency.”

a clinical nutritionist · source video · 00:19:10

Worth discussing with your GP, especially if you take medication or are pregnant. Entrain describes what is publicly taught; it does not prescribe.

Methylated b vitamins

Methylated B vitamins can be especially helpful for those with methylation pathway issues.

Strong consensus

“some people take methylated B vitamins to prevent a hangover ... something else which is very gentle and not going to cause any problems will be try methyl glycine or it's called TMG”

a molecular biology PhD · TikTok video

Grass-fed beef

Grass-fed beef offers better nutrition and supports soil and animal health.

Strong consensus

“grass-fed beef insane but how they do the research they take 100 head they put 50 on grain leave 50 on on grass when the ones on grain get fat they kill them all guess what the ones that grass are not as fat or lean”

a licensed acupuncturist and clinician-educator · source video · 00:14:32

Water filtration

Filtering water is a simple way to reduce exposure to unwanted substances.

Strong consensus

“water needs to be filtered and remember in order to filter toxins like that out of the water we must use a reverse osmosis or a distillation type filter”

a clinical nutritionist · source video · 00:06:00