99.5% Fat-Free, Low-Cal Shake Each serving of delicious Tone 'N Tighten Shake contains only 76 calories and is virtually fat-free. Each scoop has 8g of quality protein to help maintain lean mass when dieting down. Lean mass is critical for consistent, steady and permanent weight loss as it raises your metabolic rate. Loaded with vitamins and minerals, Tone 'N Tighten ShakeT is a complete meal. Natural lipotropics, thermogenics and energizers have been blended in to help make burning fat easier and quicker.