out of the periodic table of elements, which elements are used to make you healthier or are in your body?

Answer 1

Most of the human body is made up of water, H2O, with cells consisting of 65-90% water by weight. Therefore, it isn't surprising that most of a human body's mass is oxygen. Carbon, the basic unit for organic molecules, comes in second. 99% of the mass of the human body is made up of just six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus.

Oxygen (65%)
Carbon (18%)
Hydrogen (10%)
Nitrogen (3%)
Calcium (1.5%)
Phosphorus (1.0%)
Potassium (0.35%)
Sulfur (0.25%)
Sodium (0.15%)
Magnesium (0.05%)
Copper, Zinc, Selenium, Molybdenum, Fluorine, Chlorine, Iodine, Manganese, Cobalt, Iron (0.70%)
Lithium, Strontium, Aluminum, Silicon, Lead, Vanadium, Arsenic, Bromine (trace amounts)

Answer 2

In Human nutrition, the dietary bulk mineral elements (RDA > 200 mg/day) are (in alphabetical order):

Calcium
Chlorine
Magnesium
Phosphorus
Potassium
Sodium
Sulfur

The most important trace mineral elements (RDA < 200 mg/day) are (again, in alphabetical order):

Chromium
Cobalt
Copper
Fluorine
Iodine
Iron
Manganese
Molybdenum
Selenium
Zinc