Pro-biotics because a recent course of meds messed up my digestion. Might help, can't do any harm.
Omega3 because I'm struggling with fatigue, brain fog and constantly catching colds. All blood tests normal. Again, might help, can't do any harm.
D3 because advised to take high doses by my dermatologist, long before Covid. I only take them equinox to equinox, as I generally get some time outdoors in the middle of the day every day.
Multi vitamins for same reason as Omega3.
Brands: Solgar, Kirkland and Centrum all recommended by a family member with relevant knowledge. Bio-Kult because it was the brand with the highest number and greatest range of micro-organisms that did not have to be kept in the fridge.
Whether I notice any difference? I don't know yet. Have only just started taking the Omega and the vits. In the past, when I was suffering from hair loss, fragile skin and brittle nails, the supplements really helped. I noticed an improvement in the hair loss within 2-3 weeks, skin took a bit longer, and nails had to grow out completely before I could see an improvement.