Why supplement?
Cod liver oil–sourced D
Helps supply vitamin D together with fat-soluble nutrients, supporting bone health and immune regulation.
Product characteristic: EstablishedSupports bones and calcium absorption
Vitamin D helps the gut absorb calcium and maintains bone mineralization.
Clinical evidence: StrongMaintains muscle function
Adequate vitamin D helps muscles maintain normal function.
Nutrition consensus: EstablishedHow to take it
Follow the product label and professional advice.
How oftenUse the recommended daily intake; the usual adult upper limit is 100 mcg (4,000 IU)/day unless a doctor advises otherwise.
What to watch
Cautions
Avoid stacking with other high-vitamin-A products.
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.
· Long-term excess may cause nausea, thirst, or constipation
· 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.