- 8+ Vitamin K pages have MANY STUDIES or SEVERAL STUDIES in the title
- ChatGPT Dec 2023: The bioavailability of vitamin K can be reduced by several factors:
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101 Vitamin K2 items - 22 associations with the category Vitamin K
8+ Vitamin K pages have MANY STUDIES or SEVERAL STUDIES in the title
This list is automatically updated
Items found: 7
ChatGPT Dec 2023: The bioavailability of vitamin K can be reduced by several factors:
- Dietary Fat Intake: Vitamin K is a fat-soluble vitamin. Low dietary fat can reduce its absorption since fat is needed to aid in its assimilation into the body.
- Gut Health: Disorders that affect fat absorption in the gut, such as celiac disease, Crohn's disease, or other forms of malabsorption syndromes, can reduce the absorption of vitamin K.
- Antibiotics: Long-term use of antibiotics can destroy gut bacteria that synthesize vitamin K, thus reducing its levels in the body.
- Certain Medications: Medications like warfarin (a blood thinner) work by interfering with vitamin K-dependent clotting factors, effectively reducing its functional availability.
- Excessive Alcohol Consumption: Chronic alcoholism can lead to liver damage, impairing the metabolism of fat-soluble vitamins, including vitamin K.
- Bile Acid Sequestrants: These medications, used to lower cholesterol, can interfere with fat absorption, impacting the bioavailability of vitamin K.
It's important to maintain a balanced diet and consult healthcare providers before making any significant changes, especially if there are underlying health conditions or ongoing medications.
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101 Vitamin K2 items - wiki page:
- Cancers fought by repurposed drugs - aided by Vitamin D in many ways - Marik Aug 2025
- Leg cramp frequency reduced 2.7 X by 8 weeks of vitamin K - RCT Nov 2024
- High Vitamin D is great, provided you take steps to avoid problems of high Calcium
- Short stature (stunting): might be low Vitamin D or K, Iron, Zinc, etc
- Spinal fusion surgery greatly improved by Vitamin K2 - RCT May 2025
- Review of the responses of Vitamin K2 - Jan 2023
- Genes restrict Vitamin D, Vitamin K, Omega-3, Magnesium, etc.
- Gestational Diabetes Risk is increased 4.2 X if low Vitamin K2 MK-7 - Jan 2025
- Reduced fat-soluble vitamins if poor gut
- Some supplements: Vitamin D, Vitamin K, Omega-3, etc. must be taken with fatty meals (there are other forms)
- Cofactors are needed when taking high-dose vitamin D - video Nov 2024
- Water-dispersible forms of vitamins A, D, E and K are better
- Vitamins A, D, E, and K are important for health (Note: each is more bioavailable in water-soluble form) – July 2024
- Which supplements are often taken for healing hairline bone fractures
- Vitamin K can reduce aging - April 2021
- COVID associated with less Vitamin K2-7 - many studies
- T2 Diabetes is also fought by Vitamin K2 – several studies
- Supplements taken by the founder of VitaminDWiki
- Vitamin K, cardiovascular health, and stroke - many studies
- Calcium and Vitamin K2 - many studies
- Vitamin K2 fights Breast and some other cancers - many studies
- Factors that increase Vitamin D response for the GRH cohort - Jan 2023
- Hip fractures requiring hospitalization cut in half by Vitamin K1 (100 mcg per day) – Sept 2022
- Vitamin D and Vitamin K intervention trials - many studies
- Vitamin K2-7 helps bone, blood vessels, cancer, diabetes, etc. – June 2022
- Excellent reviews of supplements at ConsumerLab
- How vitamins A, B, C, D, E, F (Omega), K fight COVID - Feb 2022
- Role of Vitamin K in Bones and Muscles - Feb 2022
- 1.4 X more likely to die if both vitamin D and vitamin K are low - Aug 2020
- Nutritional supplementation during COVID hospitalization helped - RCT - Jan 2022
- Vitamin D and a Dr. in Israel - Campbell video and transcript - Dec 11, 2021
- COVID is also associated with low Vitamin K - many studies
- Vitamin K2 MK- 7 not as available if have Chronic Kidney Disease - Nov 2021
- COVID-19 patients are deficient in both Vitamin D and Vitamin K – Oct 2021
- People consuming more Vitamin K1 were 40 percent less likely to get Pancreatic Cancer – Oct 2021
- Vitamin K1 or Vitamin K2 may decrease COVID-19 deaths - Feb 2021
- Bone loss results in blood vessel plaque if low Vitamin K2, less bone loss if high K2– April 2021
- Bone increased : Stiffness (Vitamin D), Flexibility (Vitamin K2) – Sept 2020
- Cardiovascular Disease prevented by Vitamin K2-4 when enough is used – RCT review Sept 2020
- More Vitamin K and fermented food associated with fewer COVID-19 problems
- Response to Vitamin D increased if take Magnesium and Vitamin K2 – Grassroots March 2020
- Bone quality improved 2X by Vitamin D plus Vitamin K2 (trend) – meta-analysis March 2020
- Vitamin K is important to health - review Jan 2020
- Lowering Calcium Risk when having High Dose Vitamin D3 – Cawley Dec 2019
- Hypercalcemia in critically ill patients taking 10,000 IU of vitamin D (many solutions) – Oct 2019
- Diabetes and pre-diabetes helped by Vitamin K in animal studies – review Oct 2019
- Longevity expert (Sinclair) supplements include Vitamin D, Vitamin K, and Resveratrol – Sept 2019
- Vitamin D and Calcium do not increase bone density (also need exercise, Mg, K2, protein etc.) – RCT Aug 2019
- Cystic Fibrosis helped in many ways by Vitamin K – July 2019
- Mobility limitation 20 percent more likely if low Vitamin K1 – May 2019
- Vitamin K (any amount and any kind) reduced bone fractures by 24 percent – meta-analysis – May 2019
- Calcium Supplementation is OK provided you also take Vitamin K – Feb 2019
- Hard bones, soft arteries, rather than vice versa (Vitamin D and Vitamin K) – March 2016
- Cooked dried beans or peas (pulses) reduce uptake of fat soluble vitamins
- Supplements taken by US Adults, Grassroots Health – March 2019
- Many seniors do not get enough protein, Vitamin D, Mg, etc. needed for bones – Feb 2019
- Vitamin K1 and Vitamin K2 importance to health – Feb 2019
- Vitamin K Deficiency - NCBI review Jan 2019
- Calcium supplements go to muscle, not bone, unless have enough Vitamin K – Feb 2019
- Vitamin K reduces calcification (reported yet again) – Feb 2019
- Chronic Kidney Disease Patients need Vitamin K – Jan 2019
- Should increase Vitamin K when increasing Vitamin D – RCT Jan 2019
- World's Top Authors in Vitamin D, VDR, Vitamin K, Omega-3, etc - Jan 2019
- Fat loss, etc. if respond well to 3 years of Vitamin K2 (MK-7, 180 ug) – RCT Jan 2018
- Vitamin K (across all dose sizes and types) decrease Vascular Stiffness – meta-analysis - Dec 2018
- Vitamin D 2000-5,000 IU and Vitamin K2 320 microgram – June 2018
- Less DNA repair if nutrient deficient (Vitamin D, Magnesium, Omega-3, Vitamin K, etc) – Ames Oct 2018
- Vitamin D and Vitamin K together fight CVD Part 1- Pizzorno
- Importance of Vitamin K – Pizzorno – July 2018
- Adding just vitamin D again failed to add bone density (also need Magnesium, Vitamin K, etc) – RCT Aug 2018
- Kidney problems reduces Vitamin K. which causes cardiovascular problems – Aug 2018
- Vitamin K, Cardiovascular and interactions with Vitamin D and Vitamin A – Pizzorno July 2018
- Vitamin K2 - MK4, MK9, MK11, MK12 in full-fat diary products – June 2018
- Low-energy bone fractures far more likely if poor Vitamin K ratio – June 2018
- Vitamin K2 appears to treat some cancers – April 2018
- Vitamin K2 and Omega-3 associations (how about a vitamin D association) – 2018
- Stroke is strongly associated with Calcification of cerebral arteries (perhaps low Vitamin D, Vitamin K, Mg…) – March 2018
- Vitamin K guidelines for neonates need to be reconsidered – March 2018
- Multiple Sclerosis patients have 3X less Vitamin K2 in their blood – March 2018
- Osteocalcin – overview of the hormone needed to build bones, etc. Jan 2018
- Vitamin K and bone – review Oct 2017
- Mortality associated with Vitamin K insufficiency (PREVEND Study) – Nov 2017
- Vitamin K2 substantially reduces risk of T2 Diabetes (7 percent for every 10 ug) – review Nov 2017
- Bone formation in the lab is aided by Vitamin D, Vitamin K1, and Vitamin K2 – meta-analysis Nov 2017
- Intracranial arterial calcification in 85 percent of ischemic strokes (Vitamin K and Vitamin D should help) – Oct 2017
- Decalcify Aortic Valve – 3 year trial with 1 mg of Vitamin K and 5,000 IU of Vitamin D – 2021
- Seniors having minimal Vitamin D and Vitamin K walked faster – Oct 2017
- Cardiovascular problems reduced by low dose aspirin and perhaps Omega-3 (also Vit K) – Sept 2017
- Drugs which create deficiencies in Vitamin D, Vitamin K, Magnesium, Zinc, Iron, etc. – Sept 2017
- Athletes maximal cardiac output increased 12 percent with Vitamin K2 – RCT July 2017
- Fast blood flow 6.8 X more likely if high vitamin D AND high vitamin K – Aug 2017
- Liver cancer incidence probably reduced by Vitamin D and Vitamin K – July 2017
- Vitamins K1 and K2 are BOTH required for health– June 2017
- Vitamin D (also B9, B12, C, E, and K) can be limited by genes – April 2017
- Bone fracture (low energy) 19X more likely in children if low vitamin K2 - June 2017
- Vitamin K in full-fat dairy products – June 2017
- Vitamin D monotherapy is good, Vitamin D multitherapy is great
- Intestine – high vit A blocks Vitamin D, high Vit D blocks Vit K, Vit D absorbed in small int. – 2015
- Vitamin D blocks Vitamins K1, Vitamin A – 2015
- Vitamin D3 and K2 combined supplements - perhaps 2016
- Low Vitamin K2 is as risky as smoking for heart disease - Oct 2016
- Cardiovascular death: 9 percent due to hypertension or air pollution, 7 percent: low Vitamin K2 or smoking – Oct 2016
- Hypertension 1.7 times more likely if low Vitamin D AND K – Sept 2016
- Decreased need for warfarin after Vitamin D levels optimized – RCT May 2016
- Athletic performance and recovery – importance of vitamin D and vitamin K – 2015
- Cardiovascular calcification prevented by Omega-3, Magnesium, Vitamin K, and Vitamin D – April 2015
- Hip fracture 50 percent more likely if low in both vitamin D and vitamin K1 – Dec 2015
- Cirrhosis in hospital 2.9 X less likely to get need ICU when supplemented with Vitamin K – Nov 2015
- Better bones again associated with higher vitamin K intake – Nov 2015
- Yogurt fortified with K-2, Vitamin D, Mg, Omega-3, etc helped – Oct 2015
- Common deficiencies D3, Omega-3, K2, Mg, B12, E, A, Iodine, etc – Mercola Oct 2015
- The health benefits of vitamin K – Oct 2015
- Athletic performance and recovery benefits of Vitamin D (4000-5000 IU and Vitamin K) – Aug 2015
- Vitamin K and cognition in the elderly
- Vitamin D Cofactors in a nutshell
- Interview of Doctor who has authored books on Vitamin K2 and Magnesium – Mercola June 2015
- Micronutrients, methylation, epigenetics, longevity podcast by Rhonda Patrick and Tim Ferriss - June 2015
- Breast cancer – reduced proliferation with Vitamin K2 in lab – May 2015
- If you must take statins and want to avoid hardening of arteries, take vitamin K2 – RCT May 2015
- Role of vitamins in gastrointestinal diseases – review May 2015
- Vitamin K2-7 decreases arterial stiffness (cleans arteries) – RCT Feb 2015
- Hypothesis: Vitamin K will reduce prostate blood vessel problems – Jan 2015
- Vitamin D is good, but must balance Vitamins A and K2 to prevent Calcification – Masterjohn Aug 2014
- Vitamin K-2 – bone biomarkers indicate at least 600 ug of MK-4 are needed daily – Sept 2014
- Vitamin K2 (as MK-7) is needed for bone quality – Review Feb 2013
- Osteocalcin and Vitamin D - both are hormones
- More vitamin K2 needed by seniors – Jan 2014
- Vascular calcification greatly reduced by 3 per week 1000 ug of Vitamin K2 MK-7 – Dec 2013
- Increased Vitamin K2 reduces the problems of excess Calcium – Nov 2013
- Vitamin K and bone health – need more research Oct 2013
- Synergism between Vitamin D, Vitamin K-2, and Vitamin A: Masterjohn – Sept 2013
- Interactions of Vitamins D, A, and K, should measure calcitriol, calcification – Masterjohn Aug 2013
- Review of Micronutrients such as vitamin D for women and childhood – Aug 2013
- Vitamin K-2 (180 ug MK-7) helped both bone density and strength – RCT March 2013
- Vitamin D monotherapy reduces colorectal cancer but has calcemic side effects – April 2013
- Vitamin D and Vitamin K
- Cholesterol, Vitamins D3 and K2, heart disease, sulfates, LDL, – Masterjohn Interview Jan 2013
- Healthy bones need Ca, Silicon, Vitamins B, C, D, and K – Dec 2012
- Interview of Vitamin K2 and Calcium Paradox author by Dr. Mercola – Dec 2012
- Low Vitamin D or Vitamin K2 may be a cause of Hypertension and Osteoporosis – Nov 2012
- Soft Bones, Hard Arteries, Vitamin D, Vitamin K2 and antibiotics – Sept 2012
- Hip fractures greatly reduced by sunshine, vitamin D, and vitamin K – meta-analysis Sept 2012
- A balanced diet is no longer enough – supplements needed - VitaminDWiki Oct 2012
- Increasing bone mineral density increases breast cancer by at least 2X – Aug 2012
- Vitamin K2 and the Calcium Paradox – 2012 book
- Healthy bones need: Calcium, Vitamin D, Magnesium, Silicon, Vitamin K, and Boron – 2012
- Increased growth factors with vitamin D and Vitamin K2 – May 2012
- Vitamin K helps vitamin D build bone – April 2012
- Osteoporotic fractures marginally reduced with 800 IU of vitamin D and some vitamin K2 – March 2012
- Vitamin D, K2, Magnesium, etc increase bone density when taking together– Jan 2012
- Reasons for low response to vitamin D
- Hypothesis: bags under eyes are due to lack of vitamin D and vitamin K- Dec 2011
- BONE SPURS not produced if have enough Vitamin D3, Vitamin K2, etc. – Nov 2011
- Hypothesis: Age-related diseases due to lack of nutrients like vitamin K – Ames Triage Theory
- Vitamin K1 reduced hip fracture but Vitamin K2 did not – Aug 2011
- Review of synergy between vitamins D and K2 – 2010
- Do not reduce vitamin K if taking warfarin
- Low Vitamin D and Vitamin K: brittle bones and hardened arteries – LEF Sept 2010
- Women with hip fractures very low on vitamins D3 and K – Mar 2011
- Vitamin K2 from natto improved bone mineral density – March 2011
- Low cost cofactors for vitamin D
- Price and Masterjohn on Vitamin A Vitamin D and Vitamin K – 2010
- Overview Vitamin K and Vitamin D
- Postmenopausal women should supplement vitamins C D K and Calcium – June 2010
22 associations with the category Vitamin K
Vitamin K associations with: Bone - Health 28; Cardiovascular 25; Magnesium 23; Top news 16; Omega-3 15; Calcium 14; Vitamin A 11; Falls and Fractures 8; Vitamin B12 7; Osteoporosis 7; Seniors 7; Boron 6; Zinc 6; Virus 6; Supplement 6; Vitamin C 5; Diabetes 5; Iron 5; Iodine 4; Cancer 4; Meta-analysis 4; Kidney 4 As of Nov 2022
Details of Assocations of Vitamin K category to others in VitaminDWiki
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Associated category Associations Results
4 pages in both categories: Vitamin D and Vitamin K + Mortality and D
29 pages in both categories: Vitamin D and Vitamin K + Vitamin D and Magnesium
16 pages in both categories: Vitamin D and Vitamin K + Top news
19 pages in both categories: Vitamin D and Vitamin K + Vitamin D and Omega-3
30 pages in both categories: Vitamin D and Vitamin K + Bone - Health
26 pages in both categories: Vitamin D and Vitamin K + Cardiovascular
7 pages in both categories: Vitamin D and Vitamin K + Osteoporosis
9 pages in both categories: Vitamin D and Vitamin K + Falls and Fractures
18 pages in both categories: Vitamin D and Vitamin K + Vitamin D and Calcium
6 pages in both categories: Vitamin D and Vitamin K + Cancer
10 pages in both categories: Vitamin D and Vitamin K + Zinc
6 pages in both categories: Vitamin D and Vitamin K + Resveratrol
5 pages in both categories: Vitamin D and Vitamin K + Curcumin
4 pages in both categories: Vitamin D and Vitamin K + Kidney
10 pages in both categories: Vitamin D and Vitamin K + Supplement
17 pages in both categories: Vitamin D and Vitamin K + Vitamin D and Vitamin A
7 pages in both categories: Vitamin D and Vitamin K + Vitamin D and Iron
5 pages in both categories: Vitamin D and Vitamin K + Iodine
9 pages in both categories: Vitamin D and Vitamin K + Vitamin B12
8 pages in both categories: Vitamin D and Vitamin K + Virus
7 pages in both categories: Vitamin D and Vitamin K + Diabetes
7 pages in both categories: Vitamin D and Vitamin K + Vitamin D and Boron
9 pages in both categories: Vitamin D and Vitamin K + Vitamin C
7 pages in both categories: Vitamin D and Vitamin K + Seniors
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