The only problem with consuming those high-Lysine foods is that they are likely to also contain a lot of L-Argenine, which for these purpose (fighting a virus) counter-acts or reduces the effectiveness of the L-Lysine itself. Better (again, for these purposes) to just take the L-Lysine by itself in either powder or pill/capsule form - at a time well removed from any consumption of high-protein foods that may contain L-Argenine.
Looks like Keto to me.
bttt