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Vitamin D3

vitamins · The sunshine vitamin

Strong evidence

Vitamin D3 is a fat-soluble vitamin critical for immune function, bone health, and mood regulation. Most people are deficient due to indoor lifestyles.

⏱️ Timing & dosage for Vitamin D3

Best time to take

Morning with food — fat-soluble, requires dietary fat

Suggested dose

2,000–5,000 IU daily. Test blood levels, aim for 50–80 ng/mL.

✅ Benefits of Vitamin D3

  • •Immune system support
  • •Bone density & calcium absorption
  • •Mood & depression reduction
  • •Cardiovascular health
  • •Insulin sensitivity

⚠️ Side effects & risks

  • •Toxicity at very high doses (>10,000 IU/day)
  • •May raise calcium if taken without K2

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Related supplements

🟡
Vitamin K2
The calcium director
🐟
Omega-3 (EPA/DHA)
Essential fatty acids
⚡
Vitamin B1 (Thiamine)
Energy · nerve function · carb metabolism
🌟
Vitamin B2 (Riboflavin)
Energy · antioxidant · migraine prevention
🔥
Vitamin B3 (Niacin)
Cholesterol · energy · skin health · NAD+
🌿
Vitamin B5 (Pantothenic Acid)
Stress response · energy · hormone synthesis
⚕️ Medical Disclaimer: Nothing on Stack Ritual constitutes medical advice. The information provided is for educational purposes only. Always consult your doctor or a qualified healthcare provider before beginning, changing, or stopping any vitamin, supplement, or wellness regimen.