Fatigue that doesnt lift with a full nights sleep Tingling, numbness, or a pins-and-needles feeling in the hands or feet A sore, red, or unusually smooth tongue Low mood, irritability, or trouble concentrating Unsteady balance, in more advanced cases Nerve symptoms, especially tingling in the feet, can show up before a blood count looks abnormal, so fatigue alone can miss the picture
Any athlete running in a deficient state will have a negative impact on their performance
And even if you feel totally fine, its still smart to get a quick check-up or blood test first
doi:10.1038/176325a0
A single 100,000 IU injection can elevate serum 25-hydroxyvitamin D within four weeks and sustain sufficiency for up to three months, although individual kinetics vary with baseline depletion and body composition
NNMT upregulation was documented to elevate homocysteine levels, activating pro-inflammatory and pro-oxidative cascades including TLR4-NF-B and STAT3-IL-1 signalling