✿Lesher Wellness
← All ingredients

Vitamin D3

Also called: Cholecalciferol

A hormone-like vitamin that supports immunity, mood, bone strength, and hormone signaling. Low levels are common, especially in winter.

Supplements can interact with medications and aren't right for everyone, especially during pregnancy or breastfeeding, or with a chronic condition. Ask your provider before you start.

Studied for

  • Low vitamin D on a blood test
  • Immune support
  • Bone health
  • Mood, especially in winter
  • Autoimmune conditions, where low levels are common

Found naturally in

  • Sunlight on skin (the main source)
  • Salmon and sardines
  • Egg yolks
  • Fortified milk
What variations of vitamin D3 exist?Our top pick, what to skip, and how to read the label

Label red flags

  • Very high daily doses (10,000 IU+) taken long term without testing
  • Stacking several products that each contain vitamin D

Check with a provider

  • History of high calcium, kidney stones, sarcoidosis, or other granulomatous disease
  • Taking thiazide diuretics

Related conditions

Multiple sclerosisLupus

Supplements that contain it

8 products in Dr. Lesher's dispensary list vitamin d3 on the label.

Check with your provider before taking any of these, especially if you're pregnant or take medications.

Parts of the body it affects

Explore what each area does and the conditions that can affect it.

Illustration of blood cells: red blood cells, four kinds of white blood cell, and platelets

Blood & immune system

Blood carries oxygen and nutrients, and white blood cells defend you from infection. In autoimmune disease, that defense system targets your own tissues.

Illustration of a healthy joint with cartilage and joint lining

Joints

Joints let your bones move smoothly. Swelling and morning stiffness, rather than ache alone, can point to inflammation.

Illustration of a forearm with the skin cut away to show the muscles and the tendons that attach them to the bone at the elbow

Muscles

Your muscles move and steady your body. Autoimmune muscle disease shows up as true weakness, not just soreness.

Illustrations: Servier Medical Art, CC BY 4.0

Dr. Lesher, ND

Ready to find the root cause?

Dr. Lesher is a Naturopathic Doctor who focuses on autoimmune and chronic conditions in women. Since 2020, she's helped hundreds of patients stop managing symptoms and start healing.

Book a consult now