The answer to whether or not you can use some initial high doses is almost assuredly yes. Unless you've been eating huge amounts of wild salmon, or mushrooms or imported grassfed milk or cream, you've probably not had much exposure to these vitamins. And for K2, unless you have a known source you're probably at least a little, if not terribly, deficient.
It's just that these vitamins are hard to get. That's why it's worth it to spend the pretty pennies on such a small amount of oil.
On a raw diet, you're not likely to notice any deficiency symptoms because a decent raw meat diet that is even slightly varied will provide at least a little of everything, and the food is so nutrient dense and efficient because it is intact.
Just pay attention to your use of the oil and see if you notice any difference after taking it for a while. For me, it lets me get away with eating more naughty foods like sugar and grains. Not that I want to really eat those particular foods anyway, but it is a gauge if I feel like testing these oils for efficacy.
I take the oils mainly for the K2, and D, in that order. But there are literally thousands of other beneficial compounds in this magical, stinky, little elixir. Everyone would benefit from it.
I'm considering moving over to the ratfish oil though, when they produce some reasonable assays of the biochemical components (nutrition). I think it is probably more sustainable than cod and skate, since it is either bycatch, or a very deep water quarry.
