Well, I eat 4-6 and drink raw milk. I wonder how our predecessors survived without supplements... In general, the daily values are not very precise! In some cases, they are too low (vitamin C and D), and, in others, too high. It's very similar to the recommended water intake - can you imagine people not living near a stream getting 2-3 liters of water a day?

> I wonder how our predecessors survived without supplements

They survived worse. Worse health, smaller size, lower lifespan.

When you clean data from violent death, child mortality, and pandemics, our predecessors did not live much shorter lifespans!

Guess which body heals faster from a wound and epidemics, and is more likely to survive childhood: one with modern nutrition, or one with our predecessors'?

"Modern" nutrition is poor nutrition. Just because everybody's sipping on (anti-nutrient-rich) kale smoothies today, it doesn't mean that we have better nutrition. In fact, every meat has been grass-fed in the past, every fruit and vegetable - local and organic, and there're studies that plants today (even those that are local and organic) are much less nutritious than in the past.

Do you have a link to the source of this claim?

Yes, I have it - it's deep-linked in the neurons of my brain. This has been discussed here before, so, use your search skills if you possess any!

By the way, I've had raw yolks for more than five years with no issues - highly nutritious and low-calorie. I buy unrefrigerated pastured eggs from the Farmers Market and never had any issues. You shouldn't eat raw egg whites though - they are an anti-nutrient.