As we age the metabolism becomes slow, all we have to do it increase it by making simple changes to your life.
Adding proteins: People with no kidney problems are required to have 0.8 gm per kg of protein daily, and if you do weight training then you require from 1 to 1.5 mg per kg or proteins. So if you weight 60 kilos, you must have at least 50 grams of protein in your diet.
Eating frequently: Don’t go hungry too long, if you do you will have a drop in both metabolic rate and sugar that will make you crave wrong food.
Eating Breakfast: Most important meal of the day, in my last write up I have explained why breakfast is so important.
Exercise: Moderate amount of weight training increases your resting metabolic rate. Excess training can cause reverse effects.
Sleep: Sleep deprivation also affects metabolism: http://www.ncbi.nlm.nih.gov/pubmed/11896493
Winter: Yes in winter we are trying to keep our bodies warm and our metabolism goes up, trick is to stick to a healthy diet and not munch mindlessly.
White kidney bean extract: It acts as a carb blocker and helps you lose fat so your metabolism increases.