How much vitamin K should you use?
The Dietary Reference Intakes for Vitamins is a good source for understanding how much you need and how much vitamin K you can safely consume every day for the rest of your life:
It is important to note that these levels regard all sources of vitamin K, including food sources, supplements, and water.
We recommend that you experiment within the range between how much you need and how much you can safely take every day for the rest of your life. This will ensure self-experiments with vitamin K that are likely very safe and hopefully enable you to get the most out of it to help you feel and perform at your best.
What time of day should you take vitamin K?
There is no data on what the optimal time of day for use of vitamin K is. There is no evidence that vitamin K impairs sleep if taken before bed-time.
Which foods are rich in vitamin K?
The top 10 foods highest in vitamin K are [3]:
- Kale (419μg vitamin K/100g kale)
- Broccoli (141μg/100g)
- Brussel sprouts (140μg/100g)
- Cabbage (109μg/100g)
- Lettuce (102μg/100g)
- Cucumber (77μg/100g)
- Asparagus (51μg/100g)
- Green Snap Beans (48μg/100g)
- Kiwi (40μg/100g)
- Okra (40μg/100g)