Vitamin suplements work best when ingested separately from anything

3. The body absorbs iron through the help of vitamin E.

Natural vitamins are vitamins produced in laboratories.

5. Vitamin K is produced by pancreas.

6. Vitamin D helps the body absorb carbon dioxide.

7. Potassium is needed by enzymes for metabolizing.

8. We have to take antibiotics and barbiturates for optimal health.

Exercise 11. Put questions to the underlined words:

1. Vitamin supplements are usually available as isolated vitamins or in combination with other nutrients.

2. The skin creates vitamin D when it is exposed to sunlight.

3. Vitamin K is produced by intestinal bacteria.

4. Along with vitamins human body needs a certain amount of minerals.

5. Iodine assists the thyroid gland in working properly.

6. The body absorbs iron through the help of vitamin C.

7. Calcium and phosphorus build bones and teeth.

8. The body absorbs iron through the help of vitamin C.

Exercise 12. Open the brackets, using the verbs in either active or passive tenses and translate the sentences into Ukrainian:

1. Vitamins (to contribute) to good health by regulating the metabolism and assisting the bio­chemical processes of the body.

Water-soluble vitamins (to excrete) out of the body within one day.

Vitamin D (to help) the body absorb calcium.

Vitamin E (to know) as tocopherol.