I would like to encourage every woman here to research for themselves the effects of heavy metal toxicity.
Heavy metals are endocrine disrupters. They cause hormone imbalances, thyroid problems, and affect the adrenal glands (as well as many other problems). Many people are toxic with heavy metals and don't know it. Testing can be done through a naturopath or a chiropractor that has an expanded practice to determine toxicity. Most of the time heavy metals have to be "chelated" out in order for them to leave the body.
Most people today are affected by Aluminum and Mercury more than any other metals. The following is a list of sources for these two metals:

MERCURY RISKS:

“Silver” amalgam fillings
The insides of porcelian caps and crowns
The filling solution of root canals
Vaccinations
Allergy Shots
Antiseptics and preservatives containing thimerosal
Contact solutions and eye drops from the 80's
Broken thermometers or blood pressure monitors
Broken fluorescent light bulbs
Red tatoos
Vaginal contraceptives preserved with thimerosal (before October 1998)
Mercurochrome
Current Marine paints or latex paints before 1990
Fish (smallest risk)

ALUMINUM RISKS:

Anti-perspirants
Antacids
Many body lotions and cremes
Most cosmetics
Shampoos and conditioners
Soaps
Suntan lotions
Lip Balm
Alloyed Cookware
Foods made with aluminized baking powder, self-rising flour, and salt (not sea salt)

Over-the-counter medications and prescription drugs containing aluminum are too numerous to list. Read labels and consult your doctor and pharmacist

Aluminum is used in baking powder and salt , yet there are no warning labels to alert the consumer

Also, you might want to avoid Fluoride as well. Fluoride is a by-product of aluminum manufacturing. Fluoride attracts aluminum making it more absorbable by your tissues. It also affects the thyroid in a negative way. Fluoride is found in water, non-stick cookware, toothpaste, etc. Read more at www.fluoridealert.org