Fatigue is not fun. Worry, frustration, resentment, lack of sleep, anxiety, illness and poor diet are the top causes. Even mild forms of exhaustion can weigh heavy on our emotional and physical well-being. Luckily, our bodies are extremely resilient and many times we can conquer weariness by making a few dietary changes.

Water: Water is the most overlooked "performance enhancing" supplement out there. Many people are chronically dehydrated. Dehydration can limit your physical and mental capacity. Start carrying a 16- to 20-ounce water bottle around with you during the day. Aim to refill it every three to four hours.

Bananas: Bananas are a convenient source of potassium, which helps boost energy levels by maintaining normal blood pressure and heart rhythms. Drop one in your purse or carry-on to provide a quick "pick me up" during an afternoon lull.

Pumpkin seeds: They contain most of the B vitamins, along with C, D, E, and K. They also have the minerals calcium, potassium, and phosphorous.

Carrot Juice: Carrot juice is one of the richest sources of vitamin A that can be used in the daily diet. It also ranks high as a source of the other vitamins, especially those of the B complex. Its mineral content is equally rich, and includes calcium, copper, magnesium, potassium, sodium, phosphorus, chlorine, sulfur, and iron.

Celery: Celery contains vitamin C and several other active compounds that promote health, including phthalides, which may help lower cholesterol, and coumarins, that may be useful in cancer prevention.

Oatmeal: Because oatmeal is so rich in fiber, eating it in the morning will help stabilize your blood sugar throughout the day and prevent those mid-morning or mid-afternoon "crashes" that results from eating refined sugars and carbs. Although oatmeal contains a small amount of gluten, studies have shown that oatmeal is well tolerated by both adults and children with celiac disease.

Coconut Water: Coconut water contains a very good amount of electrolyte potassium. 100 ml of water has 250 mg of potassium and 105 mg of sodium. Together, these electrolytes help replenish electrolytes deficiency.

Dark Leafy Green Salad: They are a rich source of minerals (including iron, calcium, potassium, and magnesium) and vitamins, including vitamins K, C, E, and many of the B vitamins. They also provide a variety of phytonutrients including beta-carotene, lutein, and zeaxanthin, which protect our cells from damage and our eyes from age-related problems, among many other effects.