How much protein do I actually need per day?
Just started lifting. My gym bro says I need 200g protein a day. That seems like an insane amount. I'm 170 lbs and can barely get 80g from normal eating. What's the real number?
The evidence-based recommendation for muscle building: 0.7-1g per pound of bodyweight. For you at 170 lbs: 120-170g daily.
200g is overkill. Won't hurt you, but won't give additional benefits over 170g. Your gym bro is giving the classic bro-science overestimate.
The minimum effective dose for most lifters is about 0.7g/lb. Going higher provides diminishing returns.
At 170 lbs, aim for 140-170g. The "1g per lb" rule is a slight overestimate but easy to remember and won't hurt. Don't stress about hitting it exactly — even 120g is light years ahead of the average American's ~60g.
Going from 80g to 140g will make a HUGE difference. Practical ways to add protein:
- Add Greek yogurt (20g) to breakfast
- Double the meat in your lunch (15-20g extra)
- Protein shake (25g)
That's 60-65g extra right there with minimal effort.
200g is gym bro territory. It's not dangerous but you'll spend a lot more time and money chasing those last 30-40g for minimal extra benefit. 1g/lb is the sweet spot.
The research is clear: there's no additional muscle protein synthesis benefit above about 1.6g/kg (0.73g/lb) for most people. Going to 1g/lb is insurance, going to 1.2g/lb is paranoia.
If you're eating plant-based, aim for the higher end (1g/lb) to account for lower digestibility. Animal protein eaters can be fine at 0.7-0.8g/lb.
140g seems way more doable than 200g. I'll aim for that and add a shake + Greek yogurt to my routine. Thanks for the realistic advice!
As a beginner lifter, you're in the golden period of "newbie gains." Your body is primed to build muscle. Just get the protein in and lift consistently. Don't overthink the rest.