Soy is loaded
with the isoflavones genistein and daidzein.
Along
with isoflavones, lignans are one of the few naturally occurring compounds in food that function as weak or moderate estrogens when consumed by humans.
So it has a combined effect
with the isoflavones to promote unwanted issues related to thyroid health.
Not exact matches
Six premenopausal women
with normal, healthy menstrual cycles were given 45 mg of soy
isoflavones daily.
Soy sauce does not contain the level of
isoflavones associated
with other soy products such as tofu or edamame.
Most men should avoid it because it contains
isoflavones and phytoestrogens that share similarities
with estrogen.
Specifically, soy protein isolates contain
isoflavones which can interact
with hormones like estrogen and potentially skew hormone levels when taken in excess.
Their research found: «Egg yolks of hens provided
with the soy free diet, showed a rapid decrease of
isoflavone concentration.
«
Isoflavones in food associated
with reduced mortality for women
with some breast cancers.»
An epidemiological analysis of data from more than 6,000 American and Canadian women
with breast cancer finds that post-diagnosis consumption of foods containing
isoflavones — estrogen - like compounds primarily found in soy food — is associated
with a 21 percent decrease in all - cause mortality.
Isoflavones have been shown to slow the growth of breast cancer cells in laboratory studies, and epidemiological analyses in East Asian women
with breast cancer found links between higher
isoflavone intake and reduced mortality.
However, the authors note that dietary
isoflavone intake was correlated
with socioeconomic and lifestyle factors, which may also play a role in lowering mortality.
«Our findings indicate consuming soy
isoflavone regularly may help women
with PCOS improve their metabolic and cardiovascular health.»
«Soy may help protect women
with PCOS from diabetes, heart disease: Soy
isoflavone supplements boosted markers of metabolic, cardiovascular health.»
And a review in the American Society of Clinical Oncology 2013 Education Book reported that eating 10 to 20 milligrams of
isoflavones from soy foods (roughly one to two servings) a day may be linked
with a reduction in risk.
Researchers compared cow's milk to soy milk, rice milk, coconut milk, and almond milk, and soy milk came out on top nutritionally,
with more protein and beneficial compounds known as
isoflavones.
In fact, numerous animal studies show that soy
isoflavones interfere
with an enzyme called tyrosine kinase in the hippocampus, a brain region involved
with learning and memory.
If soy
isoflavones are so deleterious to our brains, then why do menopausal women always get told to combat their hot flashes
with soy
isoflavones?
The most serious problem
with soy formula is the presence of phytoestrogens or
isoflavones.
Preclinical animal studies have shown a reduction in alcohol consumption when
with kudzu root
isoflavone treatment.
It contains
isoflavones that are clearly associated
with reduced thyroid function.
Isoflavones can compete
with estrogen for the same receptor sites thereby decreasing the health risks of excess estrogen.
Researchers found that soy formulas provide infants
with a daily dose rate of 3 mg / kg body weight total
isoflavones, «which is maintained at a fairly constant level between 0 - 4 months of age....
Soy
isoflavones to provide your body
with a good source of phytoestrogens and improve memory and cognitive function
In fact, nearly half (48 %) of the women taking
isoflavones experienced hot flashes compared
with just 31 % of women who took the placebo!
As has been suspected by many in the natural health community for a while, research from the University of Illinois has confirmed that the concentration of soy
isoflavone in supplements may help drive tumor growth in women
with estrogen - receptor positive breast cancer.
With Black Cohosh to maintain normal vaginal secretions and to improve overall well being, Soy
Isoflavones to reduce hot flashes, and Gamma - Oryzanol to calm menopausal symptoms, Women's Hormonal Balance Formula from Adeeva will have you feeling like yourself again in no time!
Direct evidence that soy
isoflavones genistein and daidzein suppress the pituitary - thyroid axis in middle - aged rats fed 10 mg soy
isoflavones per kilo after only 3 weeks as compared
with rats eating regular rat chow.
• Effects of soy
isoflavones on the make - up of the gut microflora • Bacterial transformation of genetically modified soy DNA into gut bacteria capable of expressing toxic proteins that damage the intestinal lining • Effects of chemical contamination from glyphosate residues on neurological and gut function • Soy - induced activation of the immune system and altered production of inflammatory cytokines associated
with febrile seizures
What they found is that both
isoflavone and soy intake were associated
with a reduction in sperm count.
(18 - 20) Soy
isoflavones cause significant endocrine disruption both directly and indirectly: directly by binding
with estrogen receptors, and indirectly by interfering
with the body's production of estrogen, testosterone and other hormones.
Like TPO activity, uptake of iodine into the thyroid cells by NIS can be interfered
with by
isoflavones.
Soy protein is another popular plant - based protein powder that gets a bad rap because it contains
isoflavones, phytoestrogens that share similarities
with estrogen (and because it's often extracted using hexane, a petroleum - based solvent).
For example, one study done at the Schools of Public Health and Medicine at the University of North Carolina concluded based on their study results that a soy
isoflavone - rich supplement appears to have little or no effect on bone in young adult women
with normal ovarian function during the course of their one year study.
See: Interaction of estrogenic chemicals and phytoestrogens
with estrogen receptor β Soy
isoflavone genistein has about 4 % of 17β - estradiol's affinity for estrogen receptor α, responsible for estrogen's feminizing effects, and 87 % of its affinity for ERβ, which acts as a tumor suppressor.
These
isoflavones are categorized as endocrine disruptors because of the ways they interfere
with the normal function of your body's hormones.
High dietary intake of soy
isoflavones was associated
with lower risk of recurrence among post-menopausal patients
with breast cancer positive for estrogen and progesterone receptor and those who were receiving anastrozole as endocrine therapy.
Soy
Isoflavones May Cut Menopausal Cardiovascular Risk Nutrition Science News ~ July 1999 A woman's body goes through many changes during menopause — some of them
with potential to affect cardiovascular health.
It also contains
isoflavones, compounds
with weak estrogen - like properties that are heart - healthy and reduce the risk of bone loss due to osteoporosis.
You can choose not to take the
isoflavones if you wish but, when it comes to something that can potentially interact
with estrogen, soy holds a specific niche.
The
isoflavone phytoestrogens preferentially stimulate estrogen receptor β,
with protective effects against breast and prostate cancer.
While not true hormones,
isoflavones closely resemble estradiol (E2), 16 the most potent of the three forms of estrogen found in the human body17 and the form of estrogen that has been implicated in thyroid cancer.18 - 20 Soy
isoflavones cause significant endocrine disruption both directly by binding
with estrogen receptors, and indirectly by interfering
with the body's production of estrogen, testosterone and other hormones.
Dr. Pepine and his colleagues had expected that women
with high levels of genistein (the primary
isoflavone found in soybeans) would show improved vascular health, but found the opposite to be true.
The main
isoflavone in soy, genistein, deactivates human thyroid peroxidase (TPO), an enzyme, and interferes
with T3 and T4 synthesis.
The products would provide 30 to 50 milligrams of soy
isoflavones per customary serving, an amount that exceeds the average daily levels found in the Japanese diet and that has been associated
with thyroid problems and endocrine disruption.
In addition to the
isoflavone danger, I have other concerns
with this product's fructose content.
This means your «healthy» green drink is actually a rather incomplete multi in a overpriced package loaded up
with fructose and soy
isoflavones.
Khani et al also found that women
with PCOS who took 36 mg / day of soy
isoflavones for 3 months saw reductions in LDL as well as triglycerides, LH, testosterone and DHEAS.
Eating as little as 30 mg
isoflavones (from about 30 g soy protein) per day can result in hypothyroidism
with symptoms of lethargy, constipation, weight gain and fatigue.
For instance, a study conducted by scientists at Harvard University analyzed the semen of 99 men, correlated it
with their soy and
isoflavone intake during the 3 previous months, and found that both
isoflavone and soy intake were associated
with a reduction in sperm count.