Lanolin-Derived Vitamin D3｜HerbBB ingredient encyclopedia

Why supplement?

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Helps calcium absorption, bone mineralization, and muscle strength.

Clinical evidence: Strong

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Vitamin D helps the gut absorb calcium and maintains bone mineralization.

Clinical evidence: Strong

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Adequate vitamin D helps muscles maintain normal function.

Nutrition consensus: Established

With foodTake with a meal that contains fat for better absorption

Best timeBreakfast or lunch

Follow the product label and professional advice.

General wellness15 mcg/day (600 IU) for adults; 20 mcg/day (800 IU) from age 71

Specific needsDeficiency treatment doses should follow 25(OH)D testing and a doctor's directions.

How oftenUse the recommended daily intake; the usual adult upper limit is 100 mcg (4,000 IU)/day unless a doctor advises otherwise.

Forms are not interchangeable by name alone; check the label, units, and total intake first.

People with kidney disease, parathyroid disease, high blood calcium, or who take calcium-containing medicines should ask a doctor first.

Do not self-treat vitamin D deficiency with high doses; adjust using blood tests.

Common side effects

· Long-term excess may cause nausea, thirst, or constipation

Rare but important

· Toxicity can cause high blood calcium, kidney injury, and heart-rhythm problems.

Long-term dependenceNot addictive; fat-soluble vitamins can accumulate with long-term excess.