3 healthy habits that you should not overdo

"Everything in moderation" is always key when you're trying to lose weight, or simply opting to go for healthier choices. Here are some common pitfalls people make on their journey to good health.

1. Over-exercising. BBC recently reported that according to scientists, people should jog at a steady pace of 5 mph for less than 2.5 hours a week. Researcher Jacob Louis Marott, from the Frederiksberg Hospital in Copenhagen said, "You don't actually have to do that much to have a good impact on your health, and perhaps you shouldn't actually do too much. No exercise recommendations across the globe mention an upper limit for safe exercise, but perhaps there is one."

Irv Rubenstein, exercise physiologist and founder of STEPS Fitness, a personal fitness training center in Nashville, Tennessee also told The Huffington Post that taking time off from your workout is essential to keeping healthy. He said, "Rest is relative, however, so you could be physically active every day as long as you vary the type, duration and intensity throughout the week." He also recommends 48 to 72 hours between similar workouts, so that your body can recuperate.

2. Overjuicing. Juicing is great for those who aren't into chewing their fruits and veggies, but did you know that you may be missing out on fiber if you're focused on juicing fruits and vegetables versus eating them? Amy Goodson, sports nutritionist with the Dallas Cowboys told The Huffington Post, "Fiber can help you eat less by making you feel full faster. If you juice with just a handful of spinach or kale and then load up the rest of your drink with juice from fruit, along with healthful nutrients, you also get a tons of sugar with little to no fiber."

Goodson suggest increasing vegetables and lessening fruits when you juice, or juice the whole fruit, so you can get the most out of it.

3. Only consuming "healthy" food, and consuming a lot. If you've successfully removed all junk from your diet, then congratulations! However, make sure you're eating healthy food moderately, as health experts warn of too much consumption of certain food, such as canned tuna. Yahoo! reports that tuna has higher levels of mercury, which too much of can cause vision problems, impaired hearing and speech, and muscle weakness. Health experts recommend consuming no more than three to five cans per week.

Spinach lovers should also go easy, as according to Alan R. Gaby, M.D., author of the textbook Nutritional Medicine, it contains high levels of oxalate, a compound that may lead to the formation of kidney stones. Patients who have calcium oxalate kidney stones are also warned to consume spinach moderately.

As for diet and exercise, it is always best to consult first with your doctor before making any drastic measures. An informed decision can better contribute to your overall health.