can i take b12 supplements with b12 injections Do You Need a Prescription for Injections? Vitamin b1, b6, and b12

Apr 28th, 2026 How IGF-1 LR3 Promotes Muscle Growth and Recovery IGF-1 LR3 is a synthetic, long-acting form of IGF-1 that may promote muscle growth and recovery by increasing protein synthesis, but it is not FDA-approved and lacks strong human evidence in healthy individuals

When it modulates brain signaling, you simply want less food

But B12 supplements don't seem to have any effect on people already at normal levels

For most adults 60+, a sublingual methylcobalamin at 1,000 mcg daily is the right default

Expired vitamin solutions may have reduced potency and an increased chance of contamination or chemical breakdown

A separate meta-analysis that pooled results of trials in older adults with mild cognitive impairment found B-vitamin supplementation (6 to 24 months, depending on the trial) had no benefits on various cognitive parameters, including executive function, information processing speed, and episodic memory (90)