1. Overeating healthy foods.

Just because healthy foods are good for weight loss doesn't mean you should overeat them. Just like any other food, healthy foods like complex carbs, olive oil, avocados, nuts, fruits and so on contain calories and if you overindulge in them, your calories will add up leading to increased fat storage. A whole avocado contains as many as 200 calories, so if you eat several of them per day, that's overeating. Portion control is of utmost importance for every meal, usually a fist-sized portion of each food item is enough.

2. Not eating enough veggies.

If you're not losing weight as fast as you should, you need to check whether you're eating enough fiber notably from veggies. Dietary fiber aids digestion and prevents constipation which is bad for weight loss. Include cruciferous vegetables like broccoli, cauliflower, cabbage, kale, brussels sprouts, green beans, asparagus and spinach regularly in your diet. These high-fiber foods promote a sense of fullness and will keep hunger pangs at bay.

3. Eating "low-fat" foods.

Beware about eating "low-fat" foods. Some have been stripped of their nutrients and compensated by adding sugar, high fructose corn syrup, sodium and other chemical additives which are counterproductive for your weight loss efforts. It's easy to overindulge in those so-called "low-fat" foods thinking they are aiding weight loss when in fact, they are adding layers of fat to your waistline. It's important to read the ingredients label well first to know what you're really buying. There are certain low-fat foods which are good though like greek yogurt which is high in protein and low in fat without any added sugars or flavors. Although it's healthy, it's pretty bland in taste and if you want to enhance the taste, you can add some natural honey.

4. Not eating breakfast.

Breakfast should be your most important meal of the day to give you the energy you'll need first thing in the morning and to jump-start your fat burning metabolism. It's true many people are not hungry in the morning and the best thing to do is wake up a few minutes earlier. You should usually be hungrier 30 minutes after waking up. If you skip breakfast, your body will hold onto fat because it thinks it is starving, resulting in a break down of muscle mass. Starvation does not burn fat but rather muscles and this is something you don't want to happen since muscles burn calories.

Some people have their workout in the morning and exercising on an empty stomach will result in a poor workout due to lack of energy and also muscle loss because when your body doesn't get food for energy, it will eat away at your muscles for fuel. It's imperative for anyone on a weight loss regimen to have a healthy breakfast. Some rolled oats, eggs, greek yogurt, fruits and a glass of water are ideal choices.

5. Not getting adequate sleep.

Sleep is vital not only for general health and well-being but also for weight loss. Ongoing lack of sleep can result in chronic fatigue syndrome which can have a disastrous effect on your metabolism making you feel lethargic and exhausted all day long. A sluggish metabolism won't help you lose weight. Try getting at least 7-8 hours of uninterrupted quality sleep every night.

6. Not drinking enough water.

Water is fundamental for health as it hydrates your body and can also promote weight loss by acting as an appetite suppressant and maintaining effective bowel activity thereby preventing constipation. As a rule of thumb, have 8-10 glasses of water per day. Sipping water throughout the day will keep you well hydrated, energized and can speed up your metabolic rate for faster weight loss. Researchers have found that drinking 17 ounces or 500 ml of water can increase the subject's metabolic rate by a whopping 30%.

7. Not consistent in your efforts.

Weight loss is an ongoing process and not only a one-time achievement but rather a lifestyle. Even after you reach your goals, you should continue with your efforts to maintain your progress. If you are exercising and eating right during the week, but overindulging in fast foods, abusing alcohol and indulging in late-night partying every weekend, most of your weight loss efforts will be in vain. Moderation is key here. In addition, you need to stick to your routine be it exercise or nutrition and follow it day in day out without fail. You need to be disciplined, consistent and patient.