Vitamin E

Vitamin E is one of the fat soluble vitamins.

Vitamin E RDA (Recommended Dietary Allowance):

• Adults (19+ years): 15 mg/day (22.4 IU/day)
• Pregnant women: 15 mg/day (22.4 IU/day)
• Breastfeeding women: 19 mg/day (28.4 IU/day)

ODA (Optimal Daily Allowance):

• 50-400 IU/day (varies depending on individual health goals and antioxidant needs)

Found in:

• Nuts and seeds (almonds, sunflower seeds, hazelnuts)
• Vegetable oils (sunflower, safflower, wheat germ oil)
• Green leafy vegetables (spinach, broccoli)
• Fortified cereals
• Avocado
• Sweet potatoes

Helps with:

• Protecting cells from oxidative damage (antioxidant properties)
• Supporting immune system function
• Promoting skin health and reducing signs of aging
• Improving eye health and potentially reducing risk of age-related macular degeneration
• Supporting cardiovascular health by reducing oxidative stress in arteries

Insufficient doses:

• Symptoms of deficiency (rare):
  • Neurological problems (e.g., ataxia, peripheral neuropathy)
  • Muscle weakness
  • Vision issues
  • Compromised immune function
• Deficiency is more common in individuals with fat malabsorption disorders (e.g., cystic fibrosis, Crohn’s disease).

Excessive doses:

• Upper limit: 1,000 mg/day (1,500 IU/day) for adults
• Possible side effects of high doses:
  • Increased risk of bleeding (due to impaired blood clotting)
  • Nausea and gastrointestinal issues
  • Headache and fatigue
  • Potential risk of hemorrhagic stroke in extreme cases

Interactions:

• Synergy:
  • Works with vitamin C to enhance antioxidant activity (vitamin C helps regenerate vitamin E after it neutralizes free radicals).
  • Synergistic effects with selenium for antioxidant defense.
  • Works alongside omega-3 fatty acids to support cardiovascular health.
• Antagonistic interactions:
  • High doses of vitamin E can interfere with vitamin K’s role in blood clotting.
  • May reduce effectiveness of certain chemotherapy drugs (consult a healthcare provider).
  • Excessive supplementation can hinder the absorption of other fat-soluble vitamins (A, D, K).