Protect from light
Dehydration amplifies every side effect: nausea, constipation, dizziness, fatigue, and headaches
The glutathione we produce naturally declines as we age, so researchers are exploring whether a lack of the nutrient leaves the eyes more vulnerable to oxidative stress and, therefore, age-related vision troubles
Intrinsic factor antibodies and parietal cell antibodies check
The American Academy of Family Physicians and NIH identify the following clinical manifestations: Fatigue and generalized weakness Megaloblastic anemia (abnormally large, immature red blood cells) Tingling or numbness in the hands and feet (peripheral neuropathy) Difficulty walking and balance problems Cognitive disturbances including memory difficulty and confusion Mood changes, including depression and irritability Glossitis (swollen, inflamed tongue) Early symptoms such as fatigue and mild tingling are often attributed to stress, aging, or other conditions