# Vitamin K — Vitamins K1, K1D & K2

> Track Vitamin K food intake for medication management. (iPhone/iPad app by James Hollender.)

- Source: https://appshunter.io/ios/app/vitamin-k/id393118621 (this page in markdown: same URL + `.md`)
- Developer: [James Hollender](https://appshunter.io/developer/364725528)
- Category: Medical, Health & Fitness
- Price: $2.99
- Rating: 3.00/5 from 10 App Store ratings · 22 written reviews indexed
- Age rating: 12+
- Requires: iOS 12.0 · 35 MB
- Languages: American English
- Released: 2010-09-30
- Data updated: 2026-09-03
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/vitamin-k/id393118621/reviews.md

## What is Vitamin K?

IMPORTANT: Before buying this app, consider the new apps that covers Vitamin K: INR Assist. It provides the same functionality including creating custom foods, changing the color scale, and all items in the USDA database instead of just a select percentage. The only difference between these new apps is labeling and documentation, so you just need one.

Vitamin K is one of 10 iNutrient apps based on the USDA National Nutrient Database. The others include:

◉ iCarbs (Carbohydrates)
◉ iCholesterol (Dietary Cholesterol)
◉ iFiber (Fiber)
◉ iKals (Calories)
◉ iPotassium (Potassium)
◉ iProteins (Proteins)
◉ iSatFat (Saturated Fat)
◉ iSodium (Sodium)
◉ iSugars (Sugars)

Users can record their intake for any food. The information is maintained for one year and is presented in reverse chronological order grouped by day, so the latest data is presented first in the list. Editing allows for: 1) changing the number of servings; 2) changing the date; and 3) deleting records. Individual Intake Items can be copied to the current day, and all Intake Items for a single day can be copied to the current day.

If you take blood thinning medications like Coumadin(R) or Warfarin, then this is an app you will truly make use of on a regular basis.

"If you or a loved one is on Warfarin, this app is a fantastic resource to have on hand to know what foods are high in vitamin K. The foods are arranged alphabetically and are color-coded to help quickly identify how much vitamin K the particular food on interest contains. Highly recommended!

I just wanted to thank you for including endive in your latest update, v1.2, as you said you would. This is such a great app! Thanks for making it and keeping it updated! It's such a great resource for me!" -- tsd707 

The Vitamin K app provides information about foods and how they are rated for Vitamin K content. This is provided as a means to assist in deciding which foods to eat if you are using blood thinning medications such as Coumadin or Warfarin. The food servings are rated from NO Vitamin K all the way up to EXTREMELY HIGH in Vitamin K. The following colors help readily identify which is which:

- Black = Rated EXTREMELY HIGH in Vitamin K (700.0 - 1146.6 mcg)
- Dark Red = Rated VERY HIGH in Vitamin K (300.0 - 699.9 mcg)
- Red = Rated HIGH in Vitamin K (25.0 - 299.9 mcg)
- Orange = Rated MODERATELY HIGH in Vitamin K (20.0 - 24.9 mcg)
- Yellow = Rated MODERATE in Vitamin K (15.0 - 19.9 mcg)
- Light Green = Rated MODERATELY LOW in Vitamin K (10.0 - 14.9 msg)
- Green = Rated LOW in Vitamin K (5.0 - 9.9 mcg)
- Cyan = Rated VERY LOW in Vitamin K (0.1 - 4.9 mcg)
- White = Rated EXTREMELY LOW in Vitamin K (0.0 mcg)

There are eight tables listing foods:

- ALL FOODS
- Fast Foods
- Fruits & Vegetables
- Meat, Fish & Shellfish
- Dairy & Egg
- Cereal Grains & Pasta
- Sweets
- Snacks

Meat, Fish & Shellfish includes:

- Beef Products
- Poultry Products
- Pork Products
- Sausages and Luncheon Meats
- Lamb, Veal and Game Products
- Finfish and Shellfish Products

Fruits & Vegetables includes:

- Fruits and Fruit Juices
- Vegetables and Vegetable Products
- Legumes and Legume Products

Selecting a food in any of the tables will display pertinent information about the selected food serving: 

- Food Title 
- Weight (in grams) 
- Common Measure (serving size for weight) 
- Vitamin K Content (in mcg) 
- Calories 
- USDA Description 
- USDA Food Group 
- USDA Nutrient Database Number 

Information is derived from the USDA National Nutrient Database for Standard Reference: Vitamin K Content of Selected Foods per Common Measure. There are currently over 930 different foods included, searchable using approximately 2,500 names (some foods are known by different names or how they are prepared, e.g., "Egg, Fried" and "Fried Egg"). A few these have as many as six searchable names.

## Key features

- Vitamin K food content tracking
- Color-coded Vitamin K ratings
- USDA National Nutrient Database
- Record food intake for one year
- Edit servings, dates, and delete records
- Copy intake items and daily records

## Chart rankings

- #200 in Top Paid · Medical (US App Store)

## Recent user reviews (10 of 22)

All indexed reviews: https://appshunter.io/ios/app/vitamin-k/id393118621/reviews.md

### 5/5 — VK App

*2025-09-24*

I have used this app for many years.  I will always be on blood thinner so this app has helped me tremendously keeping at my INR goal consistently within my range.  This means I am not needing to go to INR nurse but every 30 days.  This app gives me freedom.  Thank you! john

### 1/5 — Trash.  Do not buy.

*2022-03-22*

Bought the app and tried to search a food.  The search was unintuitive and the app didn’t have the food I wanted, which is a common food that a lot of people eat daily. I tried to look through the food list and the app crashed.  Waste of $3.  Seems like this app is a scam to prey on people who are trying to monitor their Vitamin K intake 🤬

### 1/5 — Bad app

*2021-04-08*

It is focused on bad eating habits like fastfood and canned food. It is not easy  to fill in everyday on your phone. You have to scroll in stead you can search. Very old fashioned. Exaggerated detailed on vitam k. But it lacks an easy way of composing meals. I stick to my own made excell. It is not worth the money.

### 3/5 — Great idea, still needs work

*2019-05-03*

I was looking for something to help me track my Vitamin K intake since getting out of the hospital & now having to be on Coumadin for life due to a repeat of multiple blood clots. I am Heterozygous for FVL & was a vegetarian before all this. Dr’s & nutritionists have been helping to make the change since I can no longer be a full time vegetarian.
This app is a great idea, but I still missing things & I still haven’t figured out how to log my Vitamin K intake with it so I don’t go over 90mcg at the max intake. My Hematologist & Coumadin specialist both have told me to not have so much Vitamin K everyday & when I got to looking for a way to track my intake, came across this app & 1 other. This app had a rating review than the other.
If this app could be a easier to navigate for logging your intake, it would be more widely used and shared. I know of tons of other people on Coumadin who would love to be able to use something like this, but I won’t share the hassle until this is easier to use.

### 3/5 — Needs some crucial work. Otherwise good.

*2019-05-02*

This can be a crucial tool for folks new to the drug regime. K is obviously critical but instructions from hospitals are complicated and way too simplistic. This can be great for traveling or eating out to help with choices. 
MUST STOP CONFUSION. Coumadin is just one of several brand names for the warfarin sodium generic. It may be the most advertised, so popular, but doctors and hospitals are not tied to that brand. AND the pill shapes, colors and codes are all different. Look up the code on the pill. But they’re all subject to Vitamin K issues. 
PUT THE COLOR CODE ON THE APP AS A LEGEND. It’s not obvious and I don’t want to keep looking it up. Make it CLEAR. 
WE ALL EAT A COLLECTION OF FAVORITE FOODS GENERALLY and then try other stuff now and then. Would be great if you could click a food that would then populate a Favorites category. More complex app development, yes, but would make usage much easier.

### 2/5 — Not sure what good it is

*2016-09-23*

I'm sure this app was designed with the best intentions.  Once you figure it out you can look up what you ate and get an idea of how much K is in it.  However - it's difficult to use.  

What it's good for - looking up something that you have a question about.  Not really good for recording daily intake - yet. 

Can't wait to see it tweaked.

### 5/5 — Great for a Cruise

*2015-07-19*

Great app that works offline. No internet required.  Color coding makes it a breeze to understand.  Mom takes warfarin & we are going on a cruise.  This app is perfect! Thank you!

### 5/5 — Worked well

*2014-04-05*

App worked well. A bit slow to respond to food category changes, but nice to have handy on iPhone for someone new to Vit. K restrictions. 
Would be nice to show color chart of degrees of Vit. K on each page. 
Thanks.

### 1/5 — App is broken

*2014-03-12*

Do not buy, the app is locked on the info screen

### 5/5 — Love it!

*2012-08-10*

I like that this app adds up and shows your total daily vitamin K intake so that you can compare it to other days in the week have some more clear numbers of when and how much vit-K you took to tell your health care provider at anticoagulation management to assist them with determining your warfarin dose. Pretty large database of foods too. Very useful. :)

## Frequently asked questions about Vitamin K

### What is Vitamin K used for?

Vitamin K is primarily used to help individuals on blood-thinning medications like Coumadin or Warfarin manage their diet. It provides information on food items and their Vitamin K content to assist in making informed food choices.

### How does Vitamin K rate food items?

Vitamin K uses a color-coded system to rate food items based on their Vitamin K content, ranging from EXTREMELY LOW (White) to EXTREMELY HIGH (Black). This allows for quick visual identification of foods.

### Can I record my food intake with Vitamin K?

Yes, users can record their intake for any food. The information is maintained for one year and presented in reverse chronological order, grouped by day.

### What editing options are available for recorded intake?

Editing allows for changing the number of servings, the date of intake, and deleting records. Individual intake items or entire days can also be copied to the current day.

### What is the price of Vitamin K?

Vitamin K is a paid app priced at $2.99. This one-time purchase grants access to all its features.

### On which devices can I use Vitamin K?

Vitamin K is available for iPhone, iPad, and iPod. It is designed for iOS devices.

### How often is Vitamin K updated?

The latest version is 7.0, last updated on December 11, 2019. While it hasn't been updated recently, it is based on the USDA National Nutrient Database.

### What is the age rating for Vitamin K?

Vitamin K has an age rating of 12+. This indicates it is suitable for users aged 12 and older.

## Version history (last 5 releases)

### 7.0 — 2019-12-11

A powerful new Search Facility has been added to the All Foods view. You can now search providing two search words/phrases. The first is required, but the second is optional. If a second word/phrase is provided, then you have the option of three possible ways to use the two words/phrases: 1) AND; 2) OR; and 3) BUT NOT. Search words/phrases are case insensitive. White space at the beginning and end of Search words/phrases will be removed. The "AND / OR / BUT NOT" operand selection is not taken into account unless there is a second Search word/phrase.

### 6.0 — 2019-11-19

Updated to provide full screen usage for all iOS devices.
New app logo icon.
Temporarily removed Search from All Foods view because of technical difficulties.

### 5.0 — 2016-08-07

Fixes annoying problem where bottom half of tabs weren't tappable.
Appearance changes to accommodate newer versions of iOS.
"Other Important Info." selection tells iNutrient users how they might have savings available to them when they upgrade to one of our app bundles.
Remove iAds.

### 4.1.1 — 2013-09-30

Adjustment for USDA item No. 05168 to match SR-26.
Adjustment to advertising

### 4.1 — 2013-08-29

Preparations for the next version of iOS.

## Apps similar to Vitamin K

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Anticoag Guide](https://appshunter.io/ios/app/anticoag-guide/id1513183345) | — | Free | Medical |
| [INR Diary](https://appshunter.io/ios/app/inr-diary/id1540505030) | 4.3 (6) | $1.99 | Medical |
| [iWarfarin](https://appshunter.io/ios/app/iwarfarin/id359516751) | 2.6 (17) | Free | Medical |
| [Lupus Diary](https://appshunter.io/ios/app/lupus-diary/id944128694) | — | $4.99 | Medical |
| [Tensio](https://appshunter.io/ios/app/tensio/id951488505) | 5.0 (1) | $7.99 | Medical |
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## More apps by James Hollender

- [iCarbs](https://appshunter.io/ios/app/icarbs/id400449849)
- [iProteins](https://appshunter.io/ios/app/iproteins/id403459710)
- [iFiber](https://appshunter.io/ios/app/ifiber/id408962686)
- [iSatFat](https://appshunter.io/ios/app/isatfat/id412363059)
- [Life Inventory](https://appshunter.io/ios/app/life-inventory/id463922586)

All apps by James Hollender: https://appshunter.io/developer/364725528

## Related topics

[vitamin k](https://appshunter.io/ios/topics/vitamin-k)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*