I'm not talking about complex strategies of mixing A foods with B foods here.  What you really need to focus on to lose weight in ensuring that you always combine protein, carbohydrates and fats during meals. 

No matter what meal you are eating, it is important that you eat a small portion of protein, fat and carbohydrate at each sitting.  If you eat a meal that is simply one or the other, such as a plate of pasta with no protein, you are only partially supplying your body with the nutrients it needs to function.  You are also only partially fueling your metabolism, which needs proper fuel in order to burn fat. 

If you are consistently feeling sluggish and lackluster during the day, consider adjusting your dietary intake and ensure that you are consuming at least one food that contains each of these important nutrients.

THE IMPORTANCE OF WATER

Believe it or not, drinking more water will help you lose weight. Most people walk around in a state of semi-dehydration. In fact, if you feel thirsty chances are you are not drinking enough water.  Your body needs water to flush out toxins and
process fats.   Drink too little water and your body will be 'tricked' into thinking its hungry too, and you're likely to eat more than you would if you were properly hydrated.

If you're not drinking 8 10 oz glasses of water every day, you're not drinking enough and you may be sabotaging your weight loss.  Remember that your body is partially made up of water, and it needs water to function efficiently and burn calories.

TAKE YOUR VITAMINS

Vitamins and minerals are important to healthy metabolic functioning.  Vitamin C and the B vitamins also help your metabolism function effectively and efficiently.  Consider supplementing if you are not getting an adequate supply in your diet.  Studies also suggest that intense stress and environmental pollutants may negatively impact your energy level, inhibiting your ability to workout efficiently.  The B vitamins in particular are well known for combating stress and providing energy.