I'm looking for a piece of equipment and I'm not sure what to search for.

[multigraincracker]

3. Something else to look into.

Source W. Wikipedia.

Vitamin K2 and Kidney Stones
Role of Vitamin K2
Vitamin K2 is essential for regulating calcium in the body. It helps direct calcium to the bones and teeth while preventing its accumulation in soft tissues, including the kidneys. This regulation is crucial because excess calcium in the kidneys can lead to the formation of kidney stones.
Impact on Kidney Stone Formation
Research indicates that low levels of vitamin K2 may increase the risk of developing kidney stones. A study found that individuals with higher levels of inactive matrix gla protein (MGP), which requires vitamin K for activation, were more likely to develop kidney stones. This suggests that adequate vitamin K2 intake could help reduce the risk of stone formation.
Dietary Sources of Vitamin K2
Vitamin K2 can be found in various foods, particularly:
FOOD SOURCE TYPE OF VITAMIN K2
Natto (fermented soy) MK-7
Cheese MK-8, MK-9
Egg yolks MK-4
Butter MK-4
Recommendations
To potentially lower the risk of kidney stones, consider incorporating vitamin K2-rich foods into your diet. Balancing vitamin K2 with other fat-soluble vitamins like A and D is also important for optimal calcium metabolism.
Maintaining adequate hydration and a balanced diet can further help prevent kidney stones.

I take a K2 supplement and D in the winter if not outside much.