Why Am I Tired? Vitamin Deficiencies That Can Be Linked With Fatigue

Feeling groggy, unfocused, or just not like yourself can sometimes be connected to low levels of key nutrients. Vitamins play a major role in energy production, brain function, and overall wellbeing. When the body does not have what it needs, tiredness can show up in a big way.

If you have been dealing with restless nights or struggling to stay alert during the day, a nutrient imbalance may be one of several possible factors. Below are a few vitamins involved in supporting normal energy and cognitive function.

Vitamin B12

Vitamin B12 supports brain and nervous system function and plays a role in maintaining a healthy sleep wake rhythm. Low B12 levels may contribute to feelings of tiredness or difficulty concentrating. Because sleep quality affects so many aspects of daily energy, even small disruptions can make fatigue feel worse.

Vitamin K2

Vitamin K2 helps support normal metabolic function, which is part of how the body turns food into usable energy. It also plays a role in pathways connected to brain health. Some people notice improved focus or more stable daily energy when their nutrient levels are balanced. If K2 intake is low, feeling sluggish or mentally foggy can be more noticeable.

Vitamin D

Vitamin D supports muscle function, immune health, and overall wellbeing. Many people do not get enough due to limited sunlight, indoor lifestyles, or other environmental factors. Low vitamin D levels can be associated with tiredness and a general feeling of low energy.

If you think you may be low in any of these nutrients, the best next step is to confirm with your doctor. If they recommend supplementation, you can explore our liquid B12, D3 K2 drops, and other easy to absorb options in our store.