Highly concentrated and bioavailable liquid vitamin D3 in MCT oil, extracted from coconut oil. Alcohol-free formula. Its liquid formula is perfect for assimilation and ideal for people with swallowing problems or multiple medications. Vitamin D3 is fat-soluble and is better absorbed with facilitating lipids, such as those in medium-chain MCT oil from coconut oil. This improves its bioavailability compared to long-chain lipids in olive and sunflower oils. Suitable for gluten intolerant people. Hifas da Terra products are free of heavy metals and pesticides. Use in adults. Instructions for use: Take 1 drop/day with one of the main meals. Recommended treatment duration: minimum 2 months. The health professional may indicate a different duration according to needs.