Losing weight is already hard, but add stress into the mix and shedding pounds can be even more of a challenge. While stress usually increases the appetites of many, ThatsFit.com has recommended a list of healthy foods that actually manage and control stress, while also boosting the metabolism.

Ingesting whole grains is a natural way to boost the brain's serotonin levels, according to the website. Carbohydrates cause the body to produce insulin, which allows tryptophan -an amino acid that's the precursor to serotonin entering the brain. While all carbohydrates can produce this sensation, the website said foods such as brown rice, sweet potatoes, and whole grain cereal digest more slowly, keeping people calmer for longer.

Beverages such as low-fat milk, coffee and chamomile tea also have stress reducing properties, although the website said people should still take it easy with their java intake. While a small amount of coffee can provide a lift by raising adrenaline and dopamine levels, it also increases cortisol, known as the stress hormone. High levels of cortisol are associated with abdominal fat storage and increased fat cravings, meaning that a coffee-drinker may want to limit their consumption to one cup per day.

High levels of stress are associated with multiple health problems that may or may not be covered by health insurance. The American Institute of Stress reports that stress can lead to cardiovascular problems, insomnia and body pains.