Meal replacement shakes sure have come a long way since the days of Slim-Fast.

When used as a temporary fix, they offer vitamins and minerals when food isn’t a possibility.

Yet no shake can fully replace whole foods.

woman putting protein powder in shake

Registered dietician Amy K. Fischer says, “food first is always the best policy” (viaPrevention).

She advises using shakes only when necessary.

They can also cause constipation when first starting them.

Protein shake with workout gear

When choosing a shake, it’s also wise to consider that different bodies have differentcaloric needs.

Fruits and vegetables