Category Archives: Vitamin K

Vitamin K and Testosterone

Posted on June 13, 2024 by Robert Barrington

Hormonal interactions are difficult to quantify as there are so many variables at play. This makes it very difficult to determine the effects of nutrients on hormones, and giving advice on which nutrients may affect testosterone levels is therefore replete … Continue reading →

Posted in Testosterone, Vitamin K | Comments Off on Vitamin K and Testosterone

Vitamin K in Dairy Foods

Posted on April 26, 2024 by Robert Barrington

Phylloquinone are one group of vitamin K that are synthesised by plants and found in high concentrations in green leafy vegetables such as kale, spinach and lettuce. Vitamin K in plant foods can contribute significantly to the total intake of … Continue reading →

Posted in Dairy, Menaquinones, Phylloquinone, Vitamin K | Comments Off on Vitamin K in Dairy Foods

Don’t Forget To Eat Your Greens

Posted on April 30, 2020 by Robert Barrington

Green leafy vegetables are an excellent source of a number of nutrients, and this makes them a healthy choice for most people. However, the main advantage of green leafy vegetables is that they are not associated with energy as they … Continue reading →

Posted in Dandelion (Taraxacum officinale), Spinach, Vegetables, Vitamin K, Watercress | Comments Off on Don’t Forget To Eat Your Greens

Vitamin D Toxicity: Part 3

Posted on August 23, 2018 by Robert Barrington

Three main theories have been suggested to explain the toxicity associated with excessive intakes of vitamin D. These theories are described and discussed in part 1 (here) and part 2 (here) of this article. The traditional view is that high … Continue reading →

Posted in Beta Carotene, Vitamin A, Vitamin D, Vitamin K | Comments Off on Vitamin D Toxicity: Part 3

Vitamin D Toxicity: Part 2

Posted on August 22, 2018 by Robert Barrington

In my previous article on vitamin D toxicity (here), I explained that vitamin D can become toxic at high doses. The traditional explanation of vitamin D toxicity relates to the ability of high intakes of one vitamin D metabolite, 1,25-dihydroxyvitamin … Continue reading →

Posted in 1,25-dihydroxyvitamin D / Calcitriol, 25-hydroxyvitamin D, Calcium, Vitamin A, Vitamin D, Vitamin K | Comments Off on Vitamin D Toxicity: Part 2

The Nutritional Content of Broccoli

Posted on October 1, 2017 by Robert Barrington
Posted in Broccoli, Glucosinolates, Isothiocyanates, Potassium, Vitamin C, Vitamin K | Comments Off on The Nutritional Content of Broccoli

Roughly 50 Essential Factors

Posted on January 30, 2016 by Robert Barrington
Posted in Biotin, Calcium, Chromium, Cobalamin, Cobalt, Essential Amino Acids, Essential Fatty Acids, Fluoride, Glucose, Iron, L-leucine, L-lysine, L-methionine, L-phenylalanine, L-theanine, L-tryptophan, Leucine, Macrominerals, Magnesium, Manganese, Molybdenum, Niacin, Nickel, Pantothenic Acid, Phosphorus, Riboflavin, Selenium, Sodium, Starch, Thiamine, Trace Minerals, Vanadium, Vitamin A, Vitamin B, Vitamin C, Vitamin D, Vitamin E, Vitamin K, Zinc | Comments Off on Roughly 50 Essential Factors

Vitamin K: Blood, Bones and Cancer

Posted on December 8, 2015 by Robert Barrington

Vitamin K is a group of compounds that share the same biological activity. Vitamin K1 is also called phylloquinone and is synthesised by plants. Menaquinones are a group of structurally related compounds synthesised by bacteria, and also called vitamin K2. … Continue reading →

Posted in Bone Health, Cancer, Vitamin K | Comments Off on Vitamin K: Blood, Bones and Cancer

Vitamin K and Mortality

Posted on October 6, 2015 by Robert Barrington

Vitamin K is a group of fat soluble vitamers that include phylloquinone (vitamin K1), menaquinone (vitamin K2), and menadione (a synthetic form of vitamin K). While phylloquinone is present in green leafy vegetables, menaquinone is a product of bacterial fermentation … Continue reading →

Posted in Cancer, Cardiovascular Disease, Menadione, Menaquinones, Mortality, Phylloquinone, Vitamin K | Comments Off on Vitamin K and Mortality

Some Thoughts on Vitamin K

Posted on July 14, 2015 by Robert Barrington
Posted in Bone Health, Cancer, Vitamin K | Comments Off on Some Thoughts on Vitamin K