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Thus, during short-term fasting, changes in free and bioactive IGF-I rather than total IGF-I appear to be at least in part responsible for the increased GH secretion (111, 112), intermittent fasting (113), nor long-term calorie restriction (114) exerts any consistent inhibitory impact on serum IGF-I levels

HBV increases anti-inflammatory secretions by M2-M, preventing the implementation of adaptive immune responses and favouring pathogenesis

Araghi, S

3 , e01607 (2013)

NOX2 and nitric oxide synthase use NADPH as a cofactor to produce free radicals [120]

You can always have blood tests done and supplement with B 12 vitamins to overcome a potential deficiency