Intro to Minerals

Question 1

macro

Answer 1

> 100 mg/d

Ca, Pi, Mg, K, Na, S

Question 2

Micro

Answer 2

<100 mg/d

Fe, Zn, Cu, I, Se, Mn

Question 3

Trace

Answer 3

Arsenic, chromium, silicon, boron, nickel, vanadium, fluoride

Question 4

estimating mineral req

Answer 4

1. balance method. lowest intake needed to achieve balance (intake v losses)
   cons: bioavailability, homeostatic mechanisms, body pool/ size
2. factorial method. amount needed to replace obligatory loss
3. amount needed to maximize specific function –> enzyme activity, immunity

Question 5

homeostasis

Answer 5

ability of body to maintain equilibrium over a wide range of intake by
control of intestinal absorption
control of excretion
body redistribution