As with most things in nutrition, there’s no simple answer. Your ideal intake of calories and protein depends on your health, body composition, main goal, and the type, intensity, duration, and frequency of your physical activity.
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If you’re healthy and sedentary:
Aim for 1.2–1.8 g/kg (0.54–0.82 g/lb).
Keep in mind that your body composition is more likely to improve if you add regular activity, especially resistance training, than if you merely hit a protein target.
If you’re of healthy weight, active, and wish to keep your weight:
Aim for 1.4–2.0 g/kg (0.64–0.91 g/lb).
People who are trying to keep the same weight but improve their body composition (more muscle, less fat) may benefit from the higher end of the range.
If you’re of healthy weight, active, and wish to build muscle:
Aim for 1.6–2.4 g/kg (0.73–1.10 g/lb).
Intakes as high as 3.3 g/kg may help experienced lifters minimize fat gain when bulking.
If you’re of healthy weight, active, and wish to lose fat:
Aim for 1.6–2.4 g/kg (0.73–1.10 g/lb), skewing toward the higher end of this range as you become leaner or if you increase your caloric deficit (by eating less or exercising more).
If you’re overweight:
Aim for 1.2–1.5 g/kg (0.54–0.68 g/lb).
This range, like all the others in this list, is based on your total body weight.
How much protein per meal?
Depends on your age range!
Those are the basics, but there’s a lot more nuance when it comes to your optimal protein intake.
The process of summarizing the information was tough, so here’s a 🧵 on how we did it.
1/19
The studies on the effect of vitamin D on COVID-19 are low in quality, and their findings can only be called very preliminary.
2/19
Also, no two studies are alike. Some were trials, others observational studies. Some examined vitamin D levels, others supplementation. Some explored vitamin D as a prophylactic, others as a treatment.
Here's our summary of a recent study on protein in vegetarian diets:
Lower protein quality leads to higher total protein requirements
Reference: PubMed ID 31835510
Background: Protein quality is a function of digestibility and amino acid content. Plant-based diets often consist of foods with lower protein quality, but then, what should a vegetarian or vegan do?