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Comment by makerofspoons | Hacker News Reader

What's surprising about this is soy, greens, and legumes are all naturally rich in calcium. Fortunately I've yet to find a vegan multivitamin that doesn't have calcium and most people I know are taking one these days for Vitamin B12. At the same time I am curious what other factors for bone health besides dietary calcium a vegan might be deficient in.

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The article mentions BMI. Which makes sense, muscle and fat mass will cushion impacts.

An interesting factor often overlooked in both the vegan and vegetarian community is bioavailability. So despite soy, greens and legumes being rich in calcium, the calcium might not be available for the body to use.

Unfortunately, I've realized there are two types of vegans. Vegans, who know this and stick to well-rounded nutritional diets. And then "vegans", who I would grossly summarize as "obtains 1/3 of every day's calories from potato chips". The former group have figured it out, but I worry for the latter group.

“Whole Food, Plant Based” for the win! We need to jettison terms like Vegan which are too watered down to mean anything and politicized enough that they manage to divide rather than unite toward a goal of overall health improvement.

Vitamin K2 is critical to bone health and most/best forms of it (MK-4) are found in organ meat and fermented dairy.

There are supplements derived from natto that are vegan friendly, but in the less desirable MK-7 form.

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