USDA Vitamin K value is sometimes incorrect

[user234683]

Compare the following USDA items:

• https://fdc.nal.usda.gov/food-details/170690/nutrients
• https://fdc.nal.usda.gov/food-details/170691/nutrients

The first one reports the following

• Vitamin K (phylloquinone) 3.82 µg

The second one reports the following:

• Vitamin K (phylloquinone) 6.98 µg
• Vitamin K (Dihydrophylloquinone) 0.254 µg

However, waistline reports 3.82 µg for the first one, but only 0.254 µg for the second one, which is inconsistent. I suspect the correct solution is to add the two numbers, but I'm not familiar with this vitamin.

[user234683]

Similar issue happening with Vitamin E

[Frylen]

Phylloquinone is the chemical commonly known as vitamin K. Dihydrophylloquinone is the hydrolyzed form and commonly found in processed foods. Phylloquinone has a positive effect on some health pointers, while Dihydrophylloquinone is believed to have negative effects. Thus, it is debatable if the values should be combined. There is also Menaquinones, a form of vitamin K that is limited to animal products.

src:

• https://www.sciencedirect.com/science/article/pii/S0022316622095761
• https://pubmed.ncbi.nlm.nih.gov/17684225/
• https://www.ars.usda.gov/ARSUserFiles/80400525/Articles/jfca16_595-603.pdf