l carnitine for egg quality Effect of the inclusion of L-carnitine on and productivity of Hy-Line Brown® laying hens Full article: Effects of supplementary
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434,435,436,437 The majority of phase II and III trials center around neurotransmitter receptors and A mechanisms, while tau and inflammation drugs are more prominent in phase II, often featuring repurposed compounds
In contrast, IRS-2 is expressed at higher levels in ER , basal/TN cells and tumors [89]

doi: 10.1155/2016/7393620

This is a good place to start, although if you have an MTHFR gene mutation you might need to further explore what type of B vitamins are right for you
