How Vitamin D cuts the risk of cancer

How Vitamin D cuts the risk of cancer NutriShield Multi Vitamins and Minerals

Health Benefits of Vitamin D

As you’ll know, the NHS recommends that we all supplement with vitamin D specifically vitamin D3 in the winter to help boost our immune system against colds and flu. But there is another very important reason to take extra vitamin D.

Vitamin D is a vital factor in helping protect against cancer stem cells. Indeed, the NHS website quotes a large study from the National Cancer Center in Japan, that links higher vitamin D blood levels with significantly lower rates of cancer.

Every single day your immune system needs to combat about 10,000 cells that turn cancerous. Whether those cancer cells survive and begin to multiply to become a health threat depends on whether your immune system is strong and healthy.

Whether your immune system is strong and healthy in turn depends to an important extent on whether you have adequate vitamin D.

Yet health scientists warn that vitamin D deficiency is the most common nutritional deficiency today. Indeed almost 90% of the population in Northern Europe and North America are thought to have less than optimum vitamin D blood levels.

When you can ensure a safe and optimum vitamin D level for just 3p a day – that’s makes no sense.

This article was written by Colin Rose, a Senior Associate Member of the Royal Society of Medicine, who has been writing on science for 40 years.

10 ways Vitamin D3 will improve your health

Vitamin D is one of the most widely researched nutrients. We have done a systematic review of the literature and these studies – referenced at the end of this article – confirm the following.

(1) Vitamin D lowers the risk of colorectal cancer

The risk becomes less as the level of supplementation is increased – up to approximately 2,000 IU a day.

(2) Vitamin D reduces the risk of chronic infections

It does so by improving immune response.

(3) Vitamin D helps inhibit prostate cancer cells

It does this by supporting the increased production of a protein called GcMAF, which helps inhibit cancer cells growing in the prostate. GcMAF has a potent general anti-cancer effect that may reduce tumour size in as little as 10 days.

(4) Vitamin D activates macrophages which consume cancer cells

The same protein GcMAF activates components of the immune system called macrophages, whose function is to literally consume cancer and viral cells.

(5) Vitamin D reduces risk of breast and lung cancer

Vitamin D reduces the risk of breast cancer, probably by inhibiting
a gene that plays a role in breast cancer – a so-called oncogene (ie. a gene that carries the ability to cause cancer) called Her-2.

It also lowers the risk of lung cancer.

(6) Vitamin D is essential for calcium absorption and therefore strong bones

Vitamin D3 is also essential to ensure calcium absorption and hence helps produce strong bones. Sufficient Vitamin D3 cuts the risk of osteoporosis or osteomalacia (softening of bones).

(7) Vitamin D can activate 1,000 health-promoting genes

Overall, vitamin D as D3 – the natural form that is the same as created by sunlight – is able to activate almost 1,000 genes that contribute to health.

(8) Vitamin D reduces inflammation

Vitamin D helps reduce chronic inflammation in body tissues – and inflammation is a key driver of many long-term illnesses including heart disease, stroke and diabetes.

(9) Vitamin D improves SAD, mood and sleep quality

Vitamin D has been shown to improve general mood and sleep quality. A 2018 study links low vitamin D with a number of sleep disorders, and other studies implicate low vitamin D with S.A.D. – Seasonal Affective Disorder.

(10) Vitamin D improves brain function

People with a deficiency in vitamin D have less neuroprotection. Indeed, one study shows an almost 50% increased risk of decreased cognitive function when vitamin D is deficient.

Combine Vitamin D with Omega 3, Curcumin and Vitamin K for cancer protection

Although the foundation of health is always regular activity and a good diet, there are specific nutrients that are also known to help reduce the risk of cancer. They include:

  • Curcumin
  • Lycopene
  • The compound EGCG (epigallocatechingallate) found in green tea and green tea extract
  • Omega 3
  • Beta carotene
  • Lutein
  • Flavonoids – found in vegetables, fruits – especially the flavonoids in berries like bilberries and raspberries, and grapeseed.
  • Soy Isoflavones – associated with the lower levels of breast and prostate cancer in Japan.

The D-K combo

If you are supplementing with Vitamin D, make sure you are also taking a supplement with Vitamin K in it.  Or eating lots of high-vitamin-K foods, like kale and spinach.

How Vitamin D cuts the risk of cancer NutriShield Multi Vitamins and Minerals
Curly kale has over 1,000 mcg of Vitamin K per cup

That is because vitamin K ensures that calcium is absorbed and metabolised into bones where you want it and not deposited on artery walls – which could lead to arteries becoming harder, stiffer and less flexible.

Vitamin K is also a ‘co-factor’ with vitamin D, calcium and glucosamine to help restore connective tissue damaged in joint problems like arthritis. So, vitamins D and K are important to joint health.

Vitamins D3 and K2 – the ideal forms – are also important for heart health, helping prevent the build-up of plaque in arteries. Indeed, a study in 2004 showed that people with the highest intake of vitamin K had a 50% lower mortality risk than those with the lowest level.

Vitamin K is also produced in the gut by beneficial bacteria called probiotics. Therefore, a probiotic supplement can be a good way to ensure a healthy level of vitamin K.

Make curcumin bioavailable

How Vitamin D cuts the risk of cancer NutriShield Multi Vitamins and Minerals

If you are supplementing with curcumin (from turmeric), ensure that the supplement includes both piperine (a black pepper extract), Omega 3 fatty acids and/or a fat like lecithin,because curcumin, whilst hugely beneficial, is not easily absorbed and these ingredients make it a lot more bioavailable.

Vitamin D has protective benefits beyond cancer

Finally, in a 2018 review, Medical News Today reported that:

“Studies are also suggesting that vitamin D might have protective benefits against heart failure, diabetes, cancer, respiratory tract infections, autoimmune disease, and even hair loss.”

How much Vitamin D is optimum?

It is important to get a safe, yet optimum, vitamin D3 supplement. Studies show that this is 2,000 IU or 50mcg a day. You can get a helpful free report on Vitamin D at https://nutrishield.com/download-pages/free-vitamin-d-ebook/

You can also buy vitamin D3 for less than 3p a day from here https://nutrishield.com/the-products/vitamin-d/


How Vitamin D cuts the risk of cancer NutriShield Multi Vitamins and Minerals

This article was written by Colin Rose, a Senior Associate Member of the Royal Society of Medicine, who has been writing on science for 40 years.


If you found this article helpful and believe it can help others who are concerned to help prevent cancer, then please share it. You can also follow me through the icons below.

How Vitamin D cuts the risk of cancer NutriShield Multi Vitamins and MineralsHow Vitamin D cuts the risk of cancer NutriShield Multi Vitamins and MineralsHow Vitamin D cuts the risk of cancer NutriShield Multi Vitamins and Minerals

PS. A “best of the best” eating plan

We said that the foundation for health is a really good diet. Click here for a summary of the ‘best of the best’ taken from the largest prestige university scale studies. https://nutrishield.com/wp-content/uploads/2019/10/CR-News-Food-table.pdf


How Vitamin D cuts the risk of cancer NutriShield Multi Vitamins and Minerals
Register now for a free monthly e-newsletter on the latest in nutrition and health research.


How Vitamin D cuts the risk of cancer NutriShield Multi Vitamins and Minerals

Dr Paul Clayton designed NutriShield as a comprehensive health supplement with OPTIMUM levels of essential nutrients. See more detail elsewhere on this site or click on the button.


How Vitamin D cuts the risk of cancer NutriShield Multi Vitamins and Minerals

Dr Paul Clayton’s best-selling book Health Defence is available from booksellers.

Read it here online or see the website www.healthdefence.com for excerpts and links to buy direct from the publisher.


How Vitamin D cuts the risk of cancer NutriShield Multi Vitamins and Minerals

See online here for delicious recipes from the Health Defence Cookbook incorporating healthy foods featuring in a Mediterranean Diet.


References:

https://www.nhs.uk/news/cancer/vitamin-d-may-reduce-risk-some-cancers/

Plasma 25-hydroxyvitamin D concentration and subsequent risk of total and site specific cancers in Japanese population: large case-cohort study within Japan Public Health Center-based Prospective Study cohort BMJ 2018; 360 doi: https://doi.org/10.1136/bmj.k671 (Published 07 March 2018)

Clinical experience of integrative cancer immunotherapy with GcMAF. Inui T et al; Anticancer Res. 2013 Jul;33(7):2917-9.

Promising role for Gc-MAF in cancer immunotherapy: from bench to bedside: Ehsan Saburi, Caspian. J Intern Med. 2017 Autumn; 8(4): 228–238.

Vitamin K2 enhances osteocalcin accumulation in the extracellular matrix of human osteoblasts in vitro. Koshihara Y, Hoshi K. J Bone Miner Res. 1997 Mar;12(3):431-8. PMID: 9076586

Absolute risk for fracture and WHO guideline. Pharmacological intervention to prevent osteoporotic fractures in the elderly. Clin Calcium. 2007 Jul;17(7):1098-104. PMID: 17607078

The Association between Vitamin D Deficiency and Sleep Disorders: A Systematic Review and Meta-Analysis. Qi Gao; Nutrients 2018 Oct; 10(10): 1395.

Seyama Y, Wachi H. Atherosclerosis and matrix dystrophy. J Atheroscler Thromb. 2004;11(5):236-45. PMID: 15557705

Dietary intake of menaquinone is associated with a reduced risk of coronary heart disease: the Rotterdam Study. Geleijnse JM, et al; J Nutr. 2004 Nov;134(11):3100-5. PMID: 15514282

Optimal serum 25-hydroxyvitamin D levels for multiple health outcomes. Bischoff-Ferrari HA; Adv Exp Med Biol. 2008;624:55-71. doi: 10.1007/978-0-387-77574-6_5.


Soy anti-cancer, good for menopause, heart and bone health

Soy anti-cancer, good for menopause, heart and bone health NutriShield Multi Vitamins and Minerals


DEFINITIVE GUIDE TO SOY AT A GLANCE

♦ SOY and its isoflavones are linked to lower breast cancer risk
♦ SOY and its isoflavones can reduce negative symptoms experienced during the menopause and help alleviate PMS symptoms for younger women
♦ SOY and its isoflavones can help lower blood pressure and improve heart health
♦ SOY and its isoflavones can contribute to stronger bones
♦ SOY and its isoflavones do NOT adversely affect male sex hormones – and may reduce prostate cancer risk


Cancer risk reduction for men and women

About 1 in 11 British women will develop breast cancer at some time in their lives. In Japan, the figure is as low as 1 in 65.

Epidemiologists – scientists who study outcome patterns in populations – believe that soy may play a crucial protective role against cancer.

The Japanese diet contains considerably more soy products than the typical Western one does, and that’s thought to protect against breast cancer – and indeed other cancers.

Soy beans are extremely rich in isoflavones, and these seem to be among the most potent anti-carcinogens of all.

Isoflavones block oestrogen, a hormone linked to an increased risk of breast and other hormone-dependent cancers. They act rather like Tamoxifen, a drug widely used to treat and prevent breast cancer.

Men who think that soy is just for women should think again; considering the high rate of prostate cancer in the West, it seems that men have just as much to gain from adding soy to their diet. And soy isoflavones do NOT adversely affect male hormones like testosterone – see below.

Soy isoflavones can help in the menopause

Soy anti-cancer, good for menopause, heart and bone health NutriShield Multi Vitamins and MineralsIsoflavones can also mimic the effect of oestrogen in the body. Research shows that they can significantly alleviate the negative symptoms that many women go through during the menopause.

Two of the most distressing symptoms during the menopause are hot flushes [in the US, called “hot flashes”] during the day and night sweats during bedtime. They are caused because, as oestrogen levels fall, what’s called ‘vasomotor function’ deteriorates.

Blood vessels on the surface of the skin normally dilate when we are hot – allowing hot blood to move to the surface and the heat to escape. But this ‘vasomotor’ sequence is affected by the hormonal changes at menopause, causing the surface blood vessels to dilate randomly and the skin to become hot and sweaty.

It’s known that Japanese women on average suffer fewer menopausal symptoms than Western women – and they consume far more soy.  Indeed, the average Japanese intake of soy isoflavones is at least 15mg a day, compared with 1mg average in the West.

After earlier conflicting evidence that soy could ease menopausal symptoms, a 2012 meta-analysis (a literature survey of existing clinical trials) confirmed that:

Consumption of 30mg/day of soy isoflavones … reduces hot flashes by up to 50%.”

Isoflavones are phytoestrogens

The key isoflavone nutrients in soy isoflavones are genistein and daidzein. These are found in soy beans, and to a lesser extent in chick peas and lentils, and they appear to be the most potent of the phytoestrogens.

It should be noted that the oestrogen potency of phytoestrogens is estimated to be less than 1% of oestradiol, the natural oestrogen, and this probably explains why earlier studies did not clearly show isoflavones to be effective in ameliorating the menopausal symptoms. After all, hormone levels vary significantly from woman to woman.

However, a recent (2017) study in the Journal of Clinical and Diagnostic Research once again confirmed that:

“Soy isoflavone improves the MRS score (a measurement of menopause symptoms) among both the perimenopausal (women transitioning into menopause) and postmenopausal women.”

A fair conclusion is that women who do not want to take hormone (replacement) therapy (HT or HRT) with oestrogen, and certainly women who have had breast cancer, should consider a supplement that includes soy isoflavones for relief of menopausal symptoms.

When NICE (the National Institute for Health and Care Excellence), published guidelines in 2015 for the menopause, they confirmed there is evidence that isoflavones may relieve vasomotor symptoms.

Soy isoflavones can help with PMS

Soy anti-cancer, good for menopause, heart and bone health NutriShield Multi Vitamins and MineralsSo far, we have concentrated on the benefits of soy isoflavones for older women. But new research has highlighted the fact that soy isoflavones – in soy or a supplement – can reduce PMS symptoms.

The National Association for Premenstrual Syndrome now states:

“Our data on this is limited; however, women in Asia, who have high levels of phytoestrogens in their diet, do have fewer PMS symptoms.”

They also recommend a diet that’s high in Omega 3, B complex, vitamin D, magnesium and calcium to help relieve PMS symptoms.

Soy isoflavones for heart health

Soy anti-cancer, good for menopause, heart and bone health NutriShield Multi Vitamins and MineralsLack of oestrogen after the menopause means that a woman’s risk of heart disease becomes comparable to a man’s. So it is logical that the plant oestrogens in soy isoflavones could be part of a heart health regime – for both women and men.

An article in Current Nutrition & Food Science confirmed that soy isoflavones were helpful in reducing blood pressure (see below), but that their effects were even stronger in preventing what doctors call ‘endothelial dysfunction’.

Preventing endothelial dysfunction

The endothelium is the thin lining on the inside of your blood vessels and arteries. It’s a vital part of the regular restriction and dilation that occurs over 60 times a minute as the heart beats. And all taking place within the almost 90,000 miles (!) of blood vessels that make up the arteries, veins and capillaries in the body.

The endothelium needs to be flexible and smooth to achieve healthy blood pressure and flow. In endothelial dysfunction, oxidation (free radical damage) causes lesions in this lining; LDL cholesterol sticks to these lesions and causes atherosclerosis – a build-up of fats that can then semi-calcify, all resulting in a narrowing and hardening of the arteries.

The result is atherosclerosis, hypertension and heart disease.

Isoflavones not only act as anti-oxidants to counteract excess free radical damage – they also reduce inflammation and help restore smoothness in the endothelium. A study in the European Heart Journal showed that as little as 12 weeks of isoflavone supplementation ‘reversed endothelial dysfunction’. The report concluded that:

“These findings may have important implications for the use of isoflavone for secondary prevention in patients with cardiovascular disease, on top of conventional interventions.”

Another meta-analysis of over 20 studies in Cardio-Vascular Discoveries Journal confirmed that isoflavones improved heart health, concluding that:

“Soy isoflavones had an effect of lowering blood pressure in hypertensive subjects.”

Soy isoflavones for bone health

Soy anti-cancer, good for menopause, heart and bone health NutriShield Multi Vitamins and MineralsLack of oestrogen also predisposes a woman to osteoporosis (bone loss). Indeed, osteoporosis means ‘porous bones’. So it’s logical that a isoflavone supplement might help preserve bone density in older women. Asian women, who consume far more soy than Western women, rarely suffer from osteoporosis after the menopause.

However, a well-conducted study reported in the American Journal of Clinical Nutrition found no difference in bone density after isoflavone supplementation. But it did find that increased protein intake improves bone density.

In a way that’s not surprising, because bone density is a function of much more than oestrogen. It needs adequate calcium, vitamins A and D that support the absorption of calcium, and minerals like magnesium and zinc, plus vitamin K, which are all needed to mineralise bone.

Soy isoflavones and breast cancer

Soy anti-cancer, good for menopause, heart and bone health NutriShield Multi Vitamins and MineralsPopulation studies show that eating a high-soy diet is linked to a slightly reduced risk of developing breast cancer.

As we have seen, Asian women with a traditional diet high in soy, appear to be less likely to develop breast cancer. This benefit continues even when Asian women move to western cultures, where soy is less likely to be a regular part of the diet. This suggests that exposure to soy early in life provides the most protection against breast cancer.

When small amounts of soy are fed to animals, their rate of breast cancer falls by nearly 50%, as does the incidence of prostate cancer.

A survey in the specialist journal Anti-Cancer Agents in Medicinal Chemistry confirmed these population observations concluding that:

“The majority of breast cancer cases are hormone-receptor-positive; therefore, soy isoflavones should be considered a potential anti-cancer therapeutic agent.”

Genistein appears to be the key isoflavone. Whilst it has little effect on normal cells, it appears to be a powerful inhibitor of nearly every cancer cell type examined so far.

But genistein doesn’t just inhibit cancer cells. In vitro it can cause cancer cells to revert to normal cells – which is an absolutely crucial anti-cancer property, called ‘re-differentiation’.

Genistein seems to have yet another another amazing property. It inhibits the growth of new blood vessels, and may therefore be able to starve cancers even after they have begun to grow.

Other nutrients can work with soy to increase cancer protection. If you follow a modified Mediterranean Diet with a supplement that includes vitamin D, vitamin E, selenium, carotenoids like lutein and lycopene, Omega 3, betaine, green tea and grapeseed extract, you will have the basis of a strong, evidence-based anti-cancer regime.

Soy isoflavones and men’s health – NO adverse effects

Soy anti-cancer, good for menopause, heart and bone health NutriShield Multi Vitamins and MineralsIf soy isoflavones act as oestrogen mimics, are they safe for men – and do they affect testosterone levels or sex drive?

A survey of 47 studies on that subject is quite clear – they don’t adversely affect men. The summary in Fertility Journal concluded:

“The results of this meta-analysis suggest that neither soy foods nor isoflavone supplements alter measures of bioavailable T (testosterone) concentrations in men”.

But why? First of all, men produce the hormone oestrogen too – albeit at lower levels than women.

Secondly, we have seen that the hormone effect of soy isoflavone phytoestrogens is almost 100 times less than that of oestradiol, the natural form of oestrogen.

Thirdly, Asian men who consume many times more isoflavones from soy than Western men, have no lower levels of fertility and sex drive.

In fact, the International Society of Sexual Medicine answers the question: “Does consuming soy affect a man’s testosterone level?” with the simple answer: ‘NO’.

There is some evidence, however, that taking isoflavones does increase a woman’s desire levels, as lower oestrogen is linked to vaginal dryness and lower libido.  A diet rich in B complex vitamins, vitamin E, with isoflavones (plus exercise and de-stressing) does seem to deliver a libido boost – especially during and after the menopause.

Soy isoflavones and prostate cancer

Soy anti-cancer, good for menopause, heart and bone health NutriShield Multi Vitamins and MineralsThe US National Library of Medicine published a summary of all the research on the impact of soy isoflavones on prostate cancer.

They found:

“a significant reduction in PCa (Prostate Cancer) diagnosis after administration of soy/soy isoflavones. There may be support for epidemiological findings of a potential role for soy/soy isoflavones in PCa risk reduction.”

Once again, men looking to achieve a significant reduction in the risk of prostate cancer would not rely on one ingredient like soy isoflavones.

But as we just advised for women, a Modified Mediterranean Diet with a supplement that also includes vitamin D, vitamin E, carotenoids like lutein and lycopene, Omega 3, betaine, green tea and grapeseed extract, provides the basis of a strong, evidence-based anti-cancer regime.

Soy supplements

Soy isoflavones on their own are not the only or ideal health protective nutrients. NutriShield Premium is a daily comprehensive supplement containing 43 nutrients including 40mg of soy isoflavones with 28.8mg of genistein, 9.6mg of daidzein and 1.6mg of glycitin, designed by Dr Paul Clayton, former Chair of the Forum on Food and Health at the Royal Society of Medicine.

Soy anti-cancer, good for menopause, heart and bone health NutriShield Multi Vitamins and Minerals

 


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Dr Paul Clayton designed NutriShield as a comprehensive healthSoy anti-cancer, good for menopause, heart and bone health NutriShield Multi Vitamins and Minerals supplement with OPTIMUM levels of 43 essential nutrients including soy isoflavones, polyphenols and flavonoids from fruits, vegetables and other plants, Omega 3, betaine and greent tea. See more detail elsewhere on this site or click on the button.


Soy anti-cancer, good for menopause, heart and bone health NutriShield Multi Vitamins and MineralsDr Paul Clayton’s best-selling book Health Defence is available from bookstores or from Uni-Vite Healthcare here.

A free summary report and the opportunity to read the book online is available here.


See online here for delicious recipes from the Health Defence Cookbook  incorporating healthy foods featuring in a Mediterranean Diet. Soy anti-cancer, good for menopause, heart and bone health NutriShield Multi Vitamins and Minerals


REFERENCES

Effect of soy isoflavones on blood pressure: a meta-analysis of randomized controlled trials. Liu XX, et al; Nutr Metab Cardiovasc Dis. 2012 Jun;22(6):463-70. doi: 10.1016/j.numecd.2010.09.006. Epub 2011 Feb 9.

Clinical studies show no effects of soy protein or isoflavones on reproductive hormones in men: results of a meta-analysis. Hamilton-Reeves JM, Vazquez G, Duval SJ, Phipps WR, Kurzer MS, Messina MJ. Fertil Steril.  2010 Aug;94(3):997-1007. doi: 10.1016/j.fertnstert.2009.04.038. Epub 2009 Jun 12

Soy and soy isoflavones in prostate cancer: a systematic review and meta-analysis of randomized controlled trials. van Die MD, Bone KM, Williams SG, Pirotta MV. BJU Int. 2014 May;113(5b):E119-30. doi: 10.1111/bju.12435.

Quantitative efficacy of soy isoflavones on menopausal hot flashes. Lujin Li, Yinghua Lv, Ling Xu, and Qingshan Zheng; Br J Clin Pharmacol. 2015 Apr; 79(4): 593–604.

The Effect of Soy Isoflavones on the Menopause Rating Scale Scoring in Perimenopausal and Postmenopausal Women: A Pilot Study. Marya Ahsan and Ayaz Khurram Mallick. J Clin Diagn Res. 2017 Sep; 11(9): FC13–FC16.

Endothelial Dysfunction: Cardiovascular Risk Factors, Therapy, and Outcome: Hadi AR Hadi, Vasc Health Risk Manag. 2005 Sep; 1(3): 183–198.

Soy and Its Isoflavones: The Truth Behind the Science in Breast Cancer:  Crystal C. Douglas et al;  Anti-Cancer Agents in Medicinal Chemistry; Volume 13 , Issue 8 , 2013

Soy proteins and isoflavones affect bone mineral density in older women: a randomized controlled trial. Anne M Kenny, et al; Am J Clin Nutr. 2009 Jul; 90(1): 234–242.

Potassium, magnesium, and fruit and vegetable intakes are associated with greater bone mineral density in elderly men and women.  Tucker KL, Hannan MT, Chen H, et al. (1999)  Am J Clin Nutr 69:727-736