It can happen within hours or prevent flea infestation for an entire month. Since fleas feed on blood, giving an oral anti flea medication to your dog is a great way to poison the fleasâ food source.There are three different medications that do just this.t can happen within hours or prevent flea infestation for an entire month. Since fleas feed on blood, giving an oral anti flea medication to your dog is a great way to poison the fleasâ food source.
Calorie Content. One g of carbohydrate or protein contains 4 calories while 1 g of fat provides 9 calories. One large white bagel contains 70 g of carbohydrate while one cup of brown rice contains 45 g.
If you know how many calories you need each day, you can figure out how many grams of carbs you need: 1  Start by determining your daily calorie need and divide that number in half. 2  Each gram of carbohydrate has four calories. 3  The final number is equal to the amount of carbohydrates in grams you need each day. For example, a person who eats approximately 2,000 calories per day should take in about 250 grams of carbohydrates (2,000 divided by 2 = 1,000 and 1,000 divided by 4 = 250).