The smaller the Brussels sprout, the more tender and sweet it is (go for larger ones if you want a more cabbage-like flavor). Look for a vibrant green color and whole, intact sprouts without a lot of spots that are nice and firm. Once you get them home, store in a plastic bag in the refrigerator for up to three days.
Taking vitamin supplements will boost your energy level only if you are deficient in them. In particular, our bodies need B vitamins to release the energy in foods. The family of B vitamins includes B1, B2, B3, B5, B6, B7, B12 and folic acid.
There could be many reasons for this fatigue problem and if you can overcome it you should feel a lot better. A B50 or B100 is a very potent vitamin B complex including lots of vitamin B12 (the energy vitamin) and that should boost your energy level. You could also take a high potency energy multivitamin that also includes lots of vitamin B12. If you take vitamin B12 alone you are likely to create an imbalance with the other B vitamins which all interact so the B complex or a multivitamin is better than vitamin B12 alone. Coenzyme Q10 is a good energy enzyme to take. It also slows down the aging process.