How do I calculate my protein needs RDA
William Taylor
Updated on March 27, 2026
The answer, as established by the National Academy of Medicine, is that the Recommended Dietary Allowance (RDA) of protein for adults is 0.8 g per kilogram of body weight. To determine your RDA for protein, multiply your weight in pounds by 0.36.
How do I calculate my RDA?
The RDA is set at the EAR plus twice the standard deviation (SD) if known (RDA = EAR + 2 SD); if data about variability in requirements are insufficient to calculate an SD, a coefficient of variation for the EAR of 10 percent is ordinarily assumed (RDA = 1.2 x EAR).
What is the formula to calculate protein?
- Weight in pounds divided by 2.2 = weight in kg.
- Determine your protein number; Mildly Active = 0.8, Regularly Active = 1.5, Heavily Active = 1.8.
- Weight in kg x 0.8-1.8 gm/kg = protein gm.
What is the average RDA for protein?
The current recommended dietary allowance (RDA) for protein is 0.8 grams per kilogram (g/kg) of body weight a day for adults over 18, or about 2.3 ounces for a 180-pound adult. But research is showing that higher levels may be needed for adults age 65-plus.How do you calculate protein percentage?
- Find the grams of protein on the nutrition label.
- Multiple grams of protein by 4 to find calories from protein.
- Divide by total calories per serving to get percentage of protein.
- If the calculation is . 3 or higher, then it fits the 30% Protein Rule!
How much protein should a 64 year old man?
Current guidelines for adults of any age recommend 0.8 grams of protein per kilogram of body weight. To find out how much you need, multiply your weight in pounds by 0.36. Or use an online protein calculator. A 160-pound person would need 160 x 0.36 = 58 grams of protein a day.
How do I calculate how much protein I need to build muscle?
The general rule for calculating the minimum amount of protein that you need is 0.36 grams of protein per pound that you weigh, or 0.8 grams per kilogram that you weigh. The range is 0.8-1 gram per kilogram for healthy adults, and 1-1.2 grams per kilogram for an elderly person.
How do you calculate protein in food?
The most frequently used methods for measuring protein content in foods include the Kjeldahl method, Dumas method, direct measurement methods using UV-spectroscopy and refractive index measurement.How can I get 60g protein a day?
- Eat your protein first. …
- Snack on cheese. …
- Replace cereal with eggs. …
- Top your food with chopped almonds. …
- Choose Greek yogurt. …
- Have a protein shake for breakfast. …
- Include a high protein food with every meal. …
- Choose leaner, slightly larger cuts of meat.
The Institute of Medicine recommends that all adults should consume 0.83 grams of protein per kilogram of body weight per day. This amounts to 56 grams per day for the average male and 46 grams per day for the average female.
Article first time published onHow much protein does a 70 kg person need?
A Position Stand from the International Society of Sports Nutrition (Jager et al. 2017) describes that for building and maintaining muscle mass, an overall daily protein intake in the range of 1.4–2.0 g/kg/d is required. This represents 98-140g for a 70 kg person.
Is 200g of protein a day too much?
General recommendations are to consume 15-25 grams of protein at meals and in the early recovery phase (anabolic window) — 45 minutes to one hour after a workout. Studies show higher intakes (more than 40 grams) are no more beneficial than the recommended 15-25 grams at one time.
Is 60 grams of protein enough to build muscle?
To increase muscle mass in conjunction with regular exercise, the American College of Sports Medicine (ACSM) recommends that a person eats between 1.2-1.7 g of protein per kg of body weight per day. For a 130-lb woman looking to gain muscle mass and strength, that’s 71-100 g, and for a 150-lb man, that’s 82-116 g.
How much protein does a 125 pound woman?
The commonly recommended range of protein for both men and women is roughly 0.8 to 1.0 grams per pound of weight (in kilograms) or 0.36 to 0.45 grams per pound of body weight.
What is the maximum amount of protein intake that would typically be recommended for an elderly person to consume each day if the individual weighs 80 kg?
After reviewing additional evidence, an international group of physicians and nutrition experts in 2013 recommended that healthy older adults consume 1 to 1.2 grams of protein per kilogram of body weight daily — a 25 to 50 percent increase over the RDA.
How many grams of protein do seniors need?
Seniors may need 1.0-1.3 grams of protein for every kilogram of body weight. For example, if you weight 180 pounds this could mean consuming 80-104 grams of protein every day, regardless of your calorie intake.
Should seniors drink protein shakes?
However, older adults should not routinely drink protein shakes instead of meals, Gallo cautioned, adding: “That’s a bad idea that can actually result in reduced protein and calorie intake over the long term.”
Is 2 eggs a day enough protein?
No, 2 eggs do not contain enough protein for optimal muscle protein synthesis following a workout.
How can I get 70 gm protein a day?
- 70 Gram Protein Menu. You may have been asked to limit the amount of protein in your diet. …
- 2 eggs.
- 2 pieces rye toast. 2 Tbsp jelly. …
- 2 pieces French toast. 1 cup strawberries. …
- 2 oz grilled salmon.
- 1 cup cooked couscous. ½ cup grilled zucchini. …
- 2 oz lean turkey.
- 2 slices rye bread.
Can the body absorb more than 30g of protein?
From a nutritional standpoint, the term “absorption” describes the passage of nutrients from the gut into systemic circulation. Based on this definition, the amount of protein that can be absorbed is virtually unlimited.
How do you calculate protein concentration in mg ml?
Concentration (mg/ml) = Absorbance at 280 nm divided by path length (cm.) Pure protein of known absorbance coefficient. Use the following formula for a path length of 1 cm. Concentration is in mg/ml, %, or molarity depending on which type coefficient is used.
Is 89 grams of protein enough?
The Reference Daily Intake (RDI) for protein is 46 grams for women and 56 grams for men. However, many health and fitness experts believe you need more than that to function optimally. Here is a list of 20 delicious foods that are high in protein.
How little protein do I need?
Adults who aren’t especially active are advised to eat roughly 0.75g (0.03oz) of protein per day for each kilogram they weigh. On average, this is 55g (1.9oz) for men and 45g (1.6oz) for women – or two palm-sized portions of meat, fish, tofu, nuts or pulses.
How many grams of protein should someone weighing 60 kg need each day?
The recommended dietary allowance to prevent deficiency for an average sedentary adult is 0.8 g per kg of body weight.
What is a good macro split?
The acceptable macronutrient distribution ranges (AMDR) are 45–65% of your daily calories from carbs, 20–35% from fats and 10–35% from protein. To lose weight, find a ratio you can stick with, focus on healthy foods and eat fewer calories than you burn.
Is 225g of protein too much?
When it comes to how much protein you should consume, there’s no hard and fast guideline. Many individuals consume meals with 25 to 50 grams of protein. Eating more than 50 grams of protein per meal probably doesn’t provide any health benefits – but it won’t harm you either, says Layman.
How much protein is too much for kidneys?
While helping a client figure out how much protein to eat, it is important to keep in mind that too much protein can be harmful for anyone with kidney disease or kidney damage. For clients with kidney damage, a recommended intake is about 0.6 grams per kilogram.
Is 120g of protein too much?
If you’re looking to lose weight: It translates to roughly 0.8 to 0.9 grams of protein per pound of body weight — or 120 to 135 grams of protein per day.
Is 30g of protein enough after a workout?
So to calculate your requirements, simply multiply your weight times one of the figures above. He also recommended that you consume 20-30 grams of protein after your workout. The supplement that you are taking post-workout contains 25 grams of protein so that is probably plenty.
Is 80g of protein too much?
According to the Dietary Reference Intake report for macronutrients, a sedentary adult should consume 0.8 grams of protein per kilogram of body weight, or 0.36 grams per pound. That means that the average sedentary man should eat about 56 grams of protein per day, and the average woman should eat about 46 grams.
How much protein do I need active female?
For women who are active or trying to lose weight, more is better. A good general guideline is 1.2 to 2.0 grams of protein per kilogram of body weight. For a woman who weighs 150 pounds this means eating between 80 and 136 grams of protein per day.