Earlier on the spring am felt tiredness, irritability and weakness.

As on April, when are many fruits, vegetables selling,growing , but vitamins failure very attacked me, as till avitaminosis.As am cured his with these recipes as one tea.sp. of chopped leaves nettle adding in glass for hot water, infuse for 30 minutes, filter, use  one tbl.sp. for three times/day for a week.
10 gr of dried fruits hibiscus, and black currant,as one tbl.sp. adding in glasds for hot water, drink,like tea.

chop one tbl.sp. of fruits viburnum, adding in flass for hot water, infuse, add honey, am used within a day,like tea.

Yes,leaves of nettle are rich of vitamins C, ferrum, they are strenthening immunity, and useful in anemia, but in adults with a high blood coagulation, hypertension, atherosclerosis, pregnancy, are avoiding.
Berries infusions are whole strengthening effects having, tone, just use as alternately, not at the same time.