The Best Vitamins for Energy (and Why "Tired" Is Often Something Else)

B12

B12 helps make red blood cells and keeps nerves working. Low B12 looks like plain fatigue, then forgetfulness, tingling in the hands and feet, and a short fuse. Adults over 50, vegans and vegetarians, and people on acid reducers or metformin run low most often. NIH recommends 2.4 micrograms a day for adults. A blood test tells you where you stand; a B12 shot raises a low level within days.

Iron

Iron carries oxygen in your blood. Low iron is the most common nutrient gap in the world and the most common cause of "tired all the time" in women of childbearing age. Pale skin, cold hands, shortness of breath on stairs and strong cravings for ice are clues. This one needs a blood test before anyone takes iron: too much iron is harmful, and the fix depends on the cause.

Vitamin D

From November to March the sun in our part of the country sits too low for skin to make much vitamin D. Low vitamin D shows up as tiredness, achy muscles and more colds. NIH recommends 600 IU a day for adults up to 70. Test first, then supplement to your number.

The other B vitamins

B1, B2, B3, B5, B6 and folate all sit in the chain that turns carbohydrates, fat and protein into energy. Most people get enough from food. Heavy drinking, crash dieting and some medicines use them up faster. That is why a B-complex is in a Myers' Cocktail and in our Energy drip.

Magnesium

Magnesium is in more than 300 reactions in the body, including the ones that make energy. Low magnesium feels like tired muscles, cramps and poor sleep. Leafy greens, nuts, beans and whole grains are the food sources.

What to check before you buy anything

Sleep, thyroid, blood sugar, iron, B12 and vitamin D explain most tiredness. One blood draw covers the last four. We draw it on your couch anywhere in New York and New Jersey, and a licensed provider reads the results with you on video. If a gap shows up, the fix is simple: a pill, a shot or a drip, matched to the number.

Tired for no reason? Book a blood draw at home at zenivspa.com.

All treatments are medical services. Every guest is screened, and every treatment is provided only under the clearance, prescription or standing protocol of a licensed medical provider. Compounded peptides are not FDA-approved unless stated. Nothing on this page is a diagnosis or a promise of results.