Most people don’t realize that many “random” symptoms are actually your body’s way of asking for help. Hair thinning, brittle nails, eye twitching, tingling toes, these might not just be “aging” or “stress.” Often, they’re signs your body is missing key nutrients.
Here are 8 common deficiencies that can cause symptoms most people ignore and what you can do about them:
1) Vitamin B1 (Thiamine)
Signs: Tingling, burning, or numbness in the toes or feet (peripheral neuropathy), fatigue, irritability.
Why it matters: B1 helps your nerves and muscles function properly.
Support with: Pork, liver, eggs, sunflower seeds, or a fat-soluble form like benfotiamine.
Signs: Tingling, burning, or numbness in the toes or feet (peripheral neuropathy), fatigue, irritability.
Why it matters: B1 helps your nerves and muscles function properly.
Support with: Pork, liver, eggs, sunflower seeds, or a fat-soluble form like benfotiamine.
2) Vitamin B2 (Riboflavin)
Signs: Cracks at the corners of the mouth, sore tongue, dry skin, light sensitivity.
Why it matters: Riboflavin supports skin health, energy production, and red blood cell formation.
Support with: Liver, red meat, eggs, and dairy.
Signs: Cracks at the corners of the mouth, sore tongue, dry skin, light sensitivity.
Why it matters: Riboflavin supports skin health, energy production, and red blood cell formation.
Support with: Liver, red meat, eggs, and dairy.
3) Vitamin B7 (Biotin)
Signs: Thinning or brittle hair, brittle nails, dry skin.
Why it matters: Biotin is key for keratin production which is essential for healthy hair, skin, and nails.
Support with: Eggs (cooked, not raw), nuts, seeds, dairy, and organ meats.
Signs: Thinning or brittle hair, brittle nails, dry skin.
Why it matters: Biotin is key for keratin production which is essential for healthy hair, skin, and nails.
Support with: Eggs (cooked, not raw), nuts, seeds, dairy, and organ meats.
4) Vitamin B9 (Folate)
Signs: Premature graying, fatigue, poor concentration.
Why it matters: Folate helps make red blood cells and DNA, supporting growth and repair.
Support with: Leafy greens (spinach, kale), and citrus fruits.
Signs: Premature graying, fatigue, poor concentration.
Why it matters: Folate helps make red blood cells and DNA, supporting growth and repair.
Support with: Leafy greens (spinach, kale), and citrus fruits.
5) Vitamin B12 (Methylcobalamin)
Signs: Mouth ulcers, numbness or tingling in hands or feet, fatigue, or even hearing changes.
Why it matters: B12 is vital for nerve protection, red blood cell formation, and DNA synthesis.
Support with: Red meat, liver, clams, eggs, or a quality methylcobalamin supplement (especially if you’re plant-based).
Signs: Mouth ulcers, numbness or tingling in hands or feet, fatigue, or even hearing changes.
Why it matters: B12 is vital for nerve protection, red blood cell formation, and DNA synthesis.
Support with: Red meat, liver, clams, eggs, or a quality methylcobalamin supplement (especially if you’re plant-based).
6) Vitamin D
Signs: Deep bone or muscle pain (hips, lower back), low mood, fatigue, frequent illness.
Why it matters: Vitamin D supports calcium absorption, bone health, hormone balance, and immune function.
Support with: Fatty fish (salmon, mackerel, trout), fish liver oils, beef liver and don’t forget sunlight exposure!
Note: The link between vitamin D and fibroids is still being studied, it may play a role, but it’s not a confirmed cause.
Signs: Deep bone or muscle pain (hips, lower back), low mood, fatigue, frequent illness.
Why it matters: Vitamin D supports calcium absorption, bone health, hormone balance, and immune function.
Support with: Fatty fish (salmon, mackerel, trout), fish liver oils, beef liver and don’t forget sunlight exposure!
Note: The link between vitamin D and fibroids is still being studied, it may play a role, but it’s not a confirmed cause.
7) Magnesium
Signs: Muscle cramps, eye twitching, restless sleep, menstrual cramps, anxiety.
Why it matters: Magnesium is essential for over 300 metabolic functions, it relaxes muscles, supports nerve health, and balances electrolytes.
Support with: Leafy greens, pumpkin seeds, sesame seeds, avocado, or a magnesium bisglycinate supplement.
Signs: Muscle cramps, eye twitching, restless sleep, menstrual cramps, anxiety.
Why it matters: Magnesium is essential for over 300 metabolic functions, it relaxes muscles, supports nerve health, and balances electrolytes.
Support with: Leafy greens, pumpkin seeds, sesame seeds, avocado, or a magnesium bisglycinate supplement.
8) Potassium
Signs: Heart pounding after a carb or sugar binge, muscle weakness, fatigue, irregular heartbeat.
Why it matters: Potassium helps regulate heart rhythm, fluid balance, and nerve signals.
Support with: Bananas, potatoes, sweet potatoes, spinach, cantaloupe, avocado, or a balanced electrolyte supplement.
Signs: Heart pounding after a carb or sugar binge, muscle weakness, fatigue, irregular heartbeat.
Why it matters: Potassium helps regulate heart rhythm, fluid balance, and nerve signals.
Support with: Bananas, potatoes, sweet potatoes, spinach, cantaloupe, avocado, or a balanced electrolyte supplement.
The takeaway:
Your body speaks and symptoms are often its language. Instead of ignoring them or blaming age, tune in and nourish yourself with the right nutrients. Sometimes, small changes make a big difference in how you feel.
By Mauro Simonetti, ND
