During lactation, many of the nutrient values go either up or down. compared with those of pregnancy, what are the recommended dietary allowances during lactation

The recommended dietary allowances during lactation are to make sure that you eat healthy, keep hydrated, and take all of the necessary vitamins needed to make sure that you and your newborn are healthy.

Well if you pick a machine to work on and that's gonna be your exercise if you don't stick to that machine your muscle strength your muscle mass rather will change because you haven't been doing it you change something in your exercise routine which changes your body's form of dealing with things for example you might become weaker or stronger depending on what kind of exercises you do in whether or not the machine you picked actually your muscles grow.