Whether you're an endurance athlete training for a race or a student studying for midterms, energy is what enables your body to do work, and a lack of energy can leave you feeling sluggish and sleepy. Certain vitamins and minerals are proven to increase energy in the body, and many of them can be taken in liquid form.
B Vitamins
The eight kinds of B vitamins are responsible for helping the body to convert carbohydrates in the foods we eat into energy. According to the University of Maryland Medical center, fatigue is a symptom of vitamin B deficiency. The university also reports that a recent study found that people who were not vitamin B deficient still benefited, in the form of increased energy, from receiving injections of vitamin B. Another study reported that vitamin B injections could be helpful in treating chronic fatigue syndrome. Follow up studies are needed, and there was nothing as of yet to indicate that taking an over-the-counter vitamin B supplement in liquid form could help increase energy.
Ginseng
Ginseng is an herb, available in liquid form, that has been used for centuries to increase energy, virility and mental focus. According to the MayoClinic.com, many athletes use ginseng to enhance athletic performance, and "a few studies using ginseng extract G115® report improvements in patients with fatigue of various causes." The clinic further states, however, that studies so far have been incomplete or of low quality and that more research is needed.
Iron
Iron is found in hemoglobin, myoglobin and many of the enzymes in the body. It supports oxygen transport and aerobic metabolism, and is especially important for endurance in athletes. The Merck online medical library reports that iron deficiency is one of the most common mineral deficiencies in the world. Iron deficiency may cause fatigue, among other symptoms. According to the Montana State sports nutrition website, "consuming adequate amounts of iron is essential for optimal aerobic endurance performance." Increasing your iron levels via a liquid iron supplement may result in increased energy, especially if you do not eat enough of the foods that are iron-rich, including lean meats, dark meat poultry, legumes and whole grains. There is no evidence to support the ability of iron to increase energy in non-deficient individuals.
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