this post was submitted on 19 Mar 2026
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This happened 16 years ago, and makes no mention of his bloodwork aside from basic cholesterol stuff. Would like to see a little more balanced information on the negative impacts of this. Clearly you can't live on only potatoes forever.
Even Mark Watney supplemented with a multivitamin (and vicodin).
If you drink milk, and yeah, a multivitamin, you're good to go. Pretty much covers all your body needs. I've been doing it for almost 2 years. No issues, and my bloods came out fine at my health checkup.
In the 18th and early 19th centuries, (before the Great Famine) lots rural Irish families lived for decades on a diet that was overwhelmingly potatoes + buttermilk/milk. They often ate 5–8+ pounds of potatoes per day. This diet was credited with keeping them relatively healthy and producing tall, strong men (many Irish were prized as soldiers/recruits partly because of it).