Anaemia is a common cause of B12 or folate deficiency where there are fewer red blood cells or a lower amount of haemoglobin, which helps the blood carry oxygen around the body
But if you have a serious deficiency, it may not be enough
Homocysteine and MCH Tests One test your doctor can run is a homocysteine test
doi: 10.1111/j.1365-3164.2006.00551.x
How do you respond to dietary changes

NAD First When: The primary complaint is fatigue, low energy, or feeling depleted for no identifiable reason Brain fog, difficulty with memory recall, or cognitive slowing that is affecting work or daily function Post-viral recovery (Long COVID, post-Lyme, or similar) where systemic cellular function feels compromised The patient wants a broad, foundational energy intervention before layering anything specific on top Peptides First When: The concern is specific and localized: hair thinning, skin laxity, tendon injury, gut inflammation, or body composition The patient wants to optimize performance in the gym, including muscle gain and fat loss (CJC/Ipamorelin, Tesamorelin, MOTS-C) The goal is targeted repair, for example post-procedure healing or scar reduction The patient is already energetic but wants to enhance a specific system or tissue Combination When: Fatigue AND difficulty concentrating: NAD + Semax addresses both the cellular energy deficit and the cognitive signaling layer Fatigue AND skin/hair concerns: NAD + GHK-Cu covers the systemic energy layer and the specific tissue signaling layer simultaneously The patient has multiple complaints that clearly fall into different categories Optimization patients who want to address cellular health comprehensively rather than one concern at a time What Patients Feel: NAD vs
