You're asking and I'm answering . . .
Dear Fit,
I saw your slideshow of snacks with 10 grams of protein or more. In it you stated that women need between 40 and 60 grams of protein daily, but my personal trainer told me I need much more than that, about 100 grams. So I'm confused. How do I know how much protein I should be eating? Is there anything wrong with eating more than you need?
—Protein-loving Patricia
This is a great question because everyone's protein needs are different, based on their weight and daily activity level. To find out how to what the mathematical equation is to figure out how much protein you should be getting each day, read more.
When it comes to knowing what your recommended daily intake (RDI) is for protein, just multiply your weight in pounds by .36, or your weight in kilograms by .8. If you're an extremely active person — exercising hard core daily on a competitive sports team, or are in training for a marathon, your protein needs will be higher. You'll need to multiply your weight in pounds by .5, or your weight in kilograms by 1.1. Also, the RDI of protein increases by 30 grams if you're pregnant, and 20 grams if you're nursing. Check out the chart below to see where your protein needs lie.
| Weight | Protein per day (g) | Protein per day if you're extremely active (g) |
| 100 lbs (45 kg) | 36 | 50 |
| 105 lbs (47.7 kg) | 37.8 | 52.5 |
| 110 lbs (49.5 kg) | 39.6 | 55 |
| 115 lbs (52.3 kg) | 41.4 | 57.5 |
| 120 lbs (54.5 kg) | 43.2 | 60 |
| 125 lbs (56.8 kg) | 45 | 62.5 |
| 130 lbs (59.1 kg) | 46.8 | 65 |
| 135 lbs (61.4 kg) | 48.6 | 67.5 |
| 140 lbs (63.6 kg) | 50.4 | 70 |
| 145 lbs (55.9 kg) | 52.2 | 72.5 |
| 150 lbs (68.2 kg) | 54 | 75 |
| 155 lbs (70.5 kg) | 55.8 | 77.5 |
| 160 lbs (72.7 kg) | 57.8 | 80 |
If you're consuming more protein than you need for your weight and activity level, then you're also consuming extra calories. This can lead to weight gain, or may explain why you're having a difficult time reaching your ideal weight.

It also depends on your goals...if you are working on muscle building with a personal trainer then you need up bump up the protein intake...I have my levels at around 80g being all lean protein.
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