Enough vitamin D may protect against some cancers

Vitamin D medicine jar with sunshine in the background


Having a low blood level of vitamin D may be linked to a higher risk of developing some cancers, suggests a study published online March 7, 2018, by The BMJ. However, taking extra vitamin D to raise already normal levels does not appear to offer more protection.

Vitamin D is made by the skin from sunlight exposure and can also be obtained through fortified foods like cereal and milk, as well as from supplements. Researchers analyzed data from the Japan Public Health Center–based Prospective Study, involving 33,736 people ages 40 to 69. The people gave blood samples and were classed into four groups, ranging from the lowest to highest levels of vitamin D. They were then monitored for an average of 16 years, during which time 3,301 new cases of cancer were recorded among the participants.

After adjusting for several known cancer risk factors, such as age, weight, physical activity, smoking, alcohol intake, and dietary factors, the researchers found that high levels of vitamin D were associated with a 20% lower relative risk of cancer in both men and women compared with low vitamin D levels. Higher vitamin D levels appeared to offer the clearest benefit for reducing liver cancer risk, especially for men. The researchers found no link between high vitamin D levels and lung or prostate cancer.

It’s not clear how vitamin D may lower cancer risk, but certain factors may explain the association. For instance, previous research has suggested vitamin D has an anti-inflammatory effect and may interfere with cancer cell pathways. Also, people who tend to live healthier lifestyles are outside more often and thus are exposed to more vitamin D–generating sunlight.

The researchers also noted that there appears to be a ceiling to vitamin D’s influence against cancer, and that increasing a person’s blood vitamin D level above 20 nanograms per milliliter, which is the amount considered adequate for bone and overall health, may not offer further benefits.

Below are spiritual recipe for health and wellness: Matthew E. McLaren

“Finally, brothers and sisters, whatever is true, whatever is noble, whatever is right, whatever is pure, whatever is lovely, whatever is admirable–if anything is excellent or praiseworthy–think about such things.” – Philippians 4:8

“Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours.” – Mark 11:24

“Anxiety weighs down the heart, but a kind word cheers it up.” – Proverbs 12:25

“Who of you by worrying can add a single hour to your life?” – Luke 12:25

“For I know the plans I have for you, declares the Lord, plans for welfare and not for evil, to give you a future and a hope.” – Jeremiah 29:11

“If you, then, though you are evil, know how to give good gifts to your children, how much more will your Father in heaven give good gifts to those who ask him!” – Matthew 7:11

“A cheerful heart is good medicine, but a crushed spirit dries up the bones.” – Proverbs 17:22

“Do not be anxious about anything, but in every situation, by prayer and petition, with thanksgiving, present your requests to God.” – Philippians 4:6

“Above all else, guard your heart, for everything you do flows from it.” – Proverbs 4:23

“For God has not given us a spirit of fear, but of power and of love and of a sound mind.” – 2 Timothy 1:7

“Consider it pure joy, my brothers and sisters,[a] whenever you face trials of many kinds, because you know that the testing of your faith produces perseverance.” – James 1:2-3

“In all your ways acknowledge him, and he will make straight your paths.” – Proverbs 3:6

“Commit your actions to the LORD, and your plans will succeed.”- Proverbs 16:3

“Consider the ravens: They do not sow or reap, they have no storeroom or barn; yet God feeds them. And how much more valuable you are than birds!” Luke 12:24 – Luke 12:24

“It’s not what goes into your mouth that defiles you; you are defiled by the words that come out of your mouth.” – Matthew 15:11

“Make a tree good and its fruit will be good, or make a tree bad and its fruit will be bad, for a tree is recognized by its fruit.” – Matthew 12:33

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